col b:(5^10)*(8^2)
Answer B
2)one given dat x*=(x-1)/x condition is x<0 not necessary find which of d following is true
a)2x*=2(x*)
b)-x*=x*
c)(x-1)*/x=x*...
qn not clear, perheps answer is A
3)cola:0.0001/0.9 + 2.456/1.294
colb:5.563/2.78 + 13.569/5.265
Answer B
4) (x+2)^(x+2)<-1
cola x
colb -1
5). If a man works for an entire year,he earns an amount...But if he works for 6 months and completes his work,wat was his ratio of efforts that he put in the 6 months to his expected effort?(The questw was big...jus rephrasin it)
Ans.1/2
6). wat is the probability of picking 12 soldiers from a camp of 15 soldiers if 5 soldiers are injured?
7) COL A: 33^99 = 3^99 * 11^99
COL B: 99^33 = 9^33 * 11^33
ANS:A
8) in 1979 the average home heating cost in central region was same as avg for entire country, in 1980 central avg cost incrsd by $260 per home, an incrs of 25% over 1979. if in 1080 avg cost of of entire cntry incrsd by 22%, wat was avg incrs in cost per home for entire country?
57.2 65 228.8 317 325
9) which one below equations have the infinite no. of solution
out of 5 option 3 wer linear eq's which has only 1 soln
other 2 options wer
i)2x-y=-5 ,x-y=5 &
4x-2y=5 ,6x-3y=-15
10)Probabability that event A happens is 0.5 and prob that evnt B occurs is .6 ..wats the probability that neither of the event occurs
11) there was a cube figure which was cut thru the centre diagonal .. had to find the T.S.A(TOTAL SURFACE AREA) of the either of d figure (which is the same)
Sol)
Let side of cube=X
Diagonal of side of a cube=Xroot2
Area of the diagonal surface=Xroot2*X=X^2root2
T.S.A of the cube(which is cut diagonally)
=x^2+x^2+x^2/2+x^2/2+ X^2root2
12) prabablity that it rains on Monday but not on Tuesday is ….. units and it rains on Tuesday but not on monday is … units … find probability that it rains o both of the day
13) in rectangular cuboid the face diognal was given,alonghwith the main diognal and also the length …. Had to find the volume …..
ans just apply phythagoras and also that l^2+b^2+k^2=main diognal^2.
14). XYZ > 0 & X>Y
Col A Col B
XZ. YZ.
Sol: Case I: X=3, Y=2, Z=1 then col A is Greater.
Case II: X=5, Y= -2, Z= -3 then Col B is Greater
Therefore the answer is D
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15). The mean of the three numbers 2X, 7X, X^2 ( X square) is 12 what is the range of the given data ( X<0).
Sol: (2X+7X+X^2)/3 = 12
9X+X^2=36
X^2+9X-36=0
By solving the roots are 3 and –12, but it is given that X<0 which means X= -12
The three commodities are -24, -84 and 144
Range = Highest commodity – lowest commodity
= 144- (-84)
= 228
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16)2X+3Y=4 what is the X- intercept of the line
Sol: 2X/4 + 3Y/4 = 1
X/2 + Y/4/3 = 1
Therefore the X- intercept is 2
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17)The Three vertices of a parallelogram is given as (0,0) (1,2) (3,3) and asked to find out the fourth vertices.
Sol: The answer is (2,1) , Figure is given and by that it is very easy to answer that question
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18) A circle is drawn inside an other circle, the center of both circles are the same, the radius of the first circle is X and the radius of the second circle is X+Y , we are asked to find out the probability that if a point is taken from the circle the point should lie in the smaller circle of radius X.
Sol: Area of smaller circle = Pi ( X^2)
Area of larger circle = Pi ( X+Y)^2
The probability =number of favorable chance / Total number of chance
= (X^2) / (X+Y) ^ 2
19) There are 84 people who watch television and 72 members use pagers and X members watch only Television .
Col A Col B
Number of people use only pagers X – 12
Sol: Draw a Venn diagram
Total number of ppl who watch television = 84.
No of ppl who watch TV and use pager = 84-X
Number of ppl who use only pager = 72- ( 84 – X )
= 72- 84 + X
= X- 12
Therefore C is the answer.
-------------------------------------------------------------------------------------------------------
20). Find the Y – intercept of the equation 3X-2Y=5
Sol: X/ (5/3) + Y/(-5/2) = 1, Therefore the Y intercept is : -5/2
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21). The amount of Rs.600/- is given at a rate of X% per annum , If he receives additional Rs.90/- after an year then what is the rate of intrest ( i.e- X )
Sol:
90 rupees intrestFor 600 rupees ------------------------
XFor 100 rupees-------------------------
X= 9000/600 = 15 rupees for 100 , which means 15%
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22). 90
The perimeter of the Triangle 24
Sol: If X = 90 then triangle is a RAT ( right angle triangle ), which satisfies Pythagorean theorem from which third side is 10 , then perimeter of triangle is 24 ( 6 + 8 + 10 ), but it is clearly given that 90
23)A parking garage rents parking spaces for $10 per week or $30 per month. How much does a person save in a year by renting by the month rather than by the week?
(A) $140
(B) $160
(C) $220
(D) $240
(E) $260
24) trains 100 m and 150m in lenght long are goig in same direction on parrelel tracks.faster train speed is 60 km ph and slower train speed 42 km ph.at wht time faster train over take slower train.
ans: 250/5 = 50secs
25)1979 approximately of the 37.3 million airline passengers traveling to or from the United States used Kennedy Airport. If the number of such passengers that used Miami Airport was the number that used Kennedy Airport and 4 times the number that used Logan Airport, approximately how many millions of these passengers used Logan Airport that year?
(A) 18.6
(B) 9.3
(C) 6.2
(D) 3.1
(E) 1.6
26)certain basketball team that has played of its games has a record of 17 wins and 3 losses. What is the greatest number of the remaining games that the team can lose and still win at least of all of its games?
(A) 7
(B) 6
(C) 5
(D) 4
(E) 3
My answer: 4 ( 2/3 is 20 so total they will play 30 games. 3/4 should be winning ratio so they can max loose 7 games. 3 they have already lost so now they can max loose 4 games...
27)If n is an integer and then which of the following could be the value of k?
(A) 22
(B) 26
(C) 35
(D) 54
(E) 60
I got answer: 26
28)There were 36.000 hardback copies of a certain novel sold before the paperback version was issued. From the time the first paperback copy was sold until the last copy of the novel was sold. 9 times as many paperback copies as hardback copies were sold. If a total of 441.000 copies of the novel were sold in all, how many paperback copies were sold?
(A) 45.000
(B) 360.000
(C) 364.500
(D) 392.000
(E) 396.900
I got answer: 364,500
29)symbolic representation problem very time consumed one given dat x*=(x-1)/x condition is x<0 not necessary find which of d following is true
a)2x*=2(x*)
b)-x*=x*
c)(x-1)*/x=x*...
d)(x*)*=x
30)cola:0.0001/0.9 + 2.456/1.294
colb:5.563/2.78 + 13.569/5.265
Answer B
30)THE DECORATING COMMITTEE FOR A DANCE PLANS TO FIRNGE THE 3 INCH WIDE END OF A STREAMER BY MAKIN SMALL CUTS EVERY 1/16TH INCH. HOW MANY CUTS MUST BE MADE TO FRINGE THE END?
A)45 B)46 C )47 D) 48 E) 49
consider e,.g. :- u have 4 inch fringe, and want to cut in each 1 inch. so we will get not 4/1, but 4/1-1, coz the last part will be detached automatically. so the answer wil not b 4, but 3. so n-1...
so the actual answer is (16*3)-1 = 48-1 = 47
31). x+5 when divided by 3 leaves a remainder 2..
col A: remainder whn x is divided by 2
col B: 1
Ans. D
32) a car goes around a circle of radius of 14km in the first round it travels with a speed of 11km/hr in sud sequent rounds its speed increases by 11km/hr in each round how much time does the car take to cover a dist of 440km
a)14*8/5 b)15*14/18 c)18*4/15 d)4*15/18 e)7*4/15
33)THE DECORATING COMMITTEE FOR A DANCE PLANS TO FIRNGE THE 3 INCH WIDE END OF A STREAMER BY MAKIN SMALL CUTS EVERY 1/16TH INCH. HOW MANY CUTS MUST BE MADE TO FRINGE THE END?
A)45 B)46 C )47 D) 48 E) 49
consider e,.g. :- u have 4 inch fringe, and want to cut in each 1 inch. so we will get not 4/1, but 4/1-1, coz the last part will be detached automatically. so the answer wil not b 4, but 3. so n-1...
so the actual answer is (16*3)-1 = 48-1 = 47
34) Roger sold a watch at a profit of 10%. If he had bought it at 10% less and sold it for $13 less he would have made a profit of 15%. What is the cost price of the watch?
$220
$300
$400
$480
$540
Ans. let cost price b x
so profit 15% dat means sellin price is 1.1x
Nw purchasing at 10% less dat means 0.9x
sold for 13$ less i.e. (1.1x-13) & got profit of 15% means (15/100*90/100*x)=0.135x
selling price-purchase=profit
so (1.1x-13)-0.9x=0.135x
0.2x-13=0.135x
0.065x=13
x=200 $
so by increasing it 10% means $20 gives $200+$20 = $220......
35). the number of 2 digit even numbers that can be formed from the digits 1,2,3,4 and 5 if repititions are not allowed is :
A) 8!
B) 5!
C) 2^6
D) 16
E) 16!
36). the number of ways in which 8 different flowers can be seated to form a garland so that 4 particular flowers are never seperated is :
A) 4!4!
B) 288
C) 8!/4!
D) 5!4!
E) 8!4!
ans d)
37)an examination paper contains 8 questions of which 4 have 3 possible answers,3 have 2 possible answers each and the remaining one question has 5 possible answers.the total number of possible answers to all the questions is :
A) 3240
B) 94
C) 78
D) 2880
E) 36
38). the number of 2 digit even numbers formed from the digits 1,2,3,4,5 and 6 if repetitions of digits is not allowed
A) 6
B) 9
C) 5
D) 15
E) 17
ANS -15)
39). a box contains 2 white balls,3 black balls and 4 red balls.the number of ways in which 3 balls can be drawn from the box so that atleast one of the balls is black is
A) 74
B) 64
C) 94
D) 20
E) 24
ANS – 64)
40). the number of 5 digit telephone numbers having atleast one of their digits repeated is
A) 90000
B) 100000
C) 30240
D) 69760
E) 69000
ANS C)
41). the number of 4 digit even numbers that can be formed using 0,1,2,3,4,5,6 without repetition is
A) 120
B) 300
C) 420
D) 20
E) 42
ANS-B)
42)3^-1+3^-2+3^-3+3^-4=
A)3^-6
B)12(3^-6)
C)13(3^-3)
43) a=-b
colA:x(a+b+1)
colB:x
44)3y-4x=12=0 find its y-intersection
45)x,2x,x^2 its arthimatic mean is 12 find its range
46)
if xyz=0, x>y than
col a: xz
col b: yz
ans.: d
47) a line passes thru pnts (7,3) & (5,2),,,wat is its x intercept....
48)comparison of SD of foll
seq1 : 50,50,50,50,50
seq2 : 5,10,0,5,15
Solution:
no. elements in both series is same, i.e, 5
Range of first= max - min value = 0
Range of second = max-min = 10
49) 1 some about a simple 30:60:90 triangle inscribed in a circle
50) der is a class of 90. avg of ppl hoo passed is 84. avf of ppl ho failed is 60. total class avg is 80. how many ppl passed ?
ans: 75
51) which of the foll is a sum of 5 consecutive integers (dont remembr options...)
ans: 25
52)assume a triangle which its two sides are 4 and 25 and the third number is an prime number , and was asked to find out the perimeter of the trinagle/
a) 48 b)53 or 58 sryy frn don rember da options
53). a box contains 2 white balls,3 black balls and 4 red balls.the number of ways in which 3 balls can be drawn from the box so that atleast one of the balls is black is
A) 74
B) 64
C) 94
D) 20
E) 24
u had asked this question..
solution for this is
=3c1*4c1*2c1+3c1*4c2+3c1*2c2+3c2*4c1+3c2*2c1+3c3
=24+18+3+12+6+1
=64
54)x>y>0,a>b>0
cola colb
x/b y/a
it has nt been told that x,y,a,b,are diff.
so if x=b,y=c
theyre equal and the ans. is D
55)You are given a square ABCD and E and F are the midponits of sides CD and DA then what is the ratio of area of the traiangle BEF and the square ABCD?
A) 3/8
B) 5/8
C)1/8
D)4/8
E)None!
Answer is A.
Sol,
Draw the figure(Its very easy to draw it). Let side of square be a.
see, now EF =Sqrt(DE^2+ FD^2) = a/sqrt2
and BE = sqrt(EC^2+BC^2) =sqrt((a/2)^2+a^2) = a/2*sqrt5
Area of BEF = 1/2*EF*BG (G is the perpendicular from B to EF)
BG^2+DE^2 = BE^2
=> BG = sqrt(5*a^2/4 - a^2/8) = 3a/2*1/sqrt2
So, Area = 1/2*a/sqrt2*3a/2*1/sqrt2 = 3a^2/8
56)Let A be a set of positive odd integers less than100. let B be the set of positive integers less than 5.Let C be the number of numbers consisting of the number of products of the numbers from the two sets.
col A : numbers in C
col B 100
Answer is A.
Solution:
Set A has 50 numbers, Set B has 5 numbers!(out of which 2, 3, 5 are primes).
so, product set will have at least 150 new numbers(without any repetition :P)!
57)Volume of a sphere with radius r is 4/3*pie*(r cube), now if radius of another sphere is 2r then how many times more than first sphere.
A.)16
B)8
C)4
D)2
E)1
Answer is B.
Sol. Volume of 2nd sphere = 4/3*pie*(2r)^3 = 8*4/3*pie*(r)^3 = 8 times!
58)x1,x2......x6 are numbers such that every number is 1/2 times less than previous number
if x2+x4+x6=42
x1+x3+x5=
a)24
b)42
c)84
d)104
Answer is C
Sol. x2 = 1/2*x1
x4 = 1/2*x3
x6 = 1/2*x5
Sum, these up
x2+x4+x6 = 1/2*(x1+x3+x5)
=>x1+x3+x5 = 2*42 = 84
59)xy<0
col A col B
|x+y| |x|+|y|
Answer is B.
Sol. xy<0 => either x<0 or y<0
60)Given a circle 72 deg of the circle is shaded, now circle will look like sector with x,a,b points on the sector. Area of shaded region (sector) was 5pie\9.
Find length of arc?
a)pi\3
b)pi\4
c)pi\2
d)5pi\2
e)2pi\3
Ans E.
Sol..angle = 72=4*pi/10= 2/5*pi.
area of shaded portion = 5*pi/9
as, we know..area of a sector = 1/2*r^2*(angle) = 5*pi/9
substituting angle = 2/5*pi.
r = 5/3
so, arc= r*angle = 2*pi/3
Given : a=-b
61)col a : x(a+b+1)
col b: x
Answer C
a+b+1 = 1, so x(a+b+1) = x
62)The nearest value of 10000 + sqrt(568.01+ 623.01)
a) 5000 ( No, It was in some 500 change)
b) 6000
c) 9000
d) 10100
e)20200
Answer D
Sol. sqrt(568.01+ 623.01) ~sqrt(1200)~ 35
so, 10000+ sqrt(568.01+ 623.01) ~10035 ~ 10100
all about approximations! rest of the options are too vague!
63) x>11
col a)no.of prime no.s between x and 2x
col b) 6
ans is d.
64) A is a set of multiples of 3 between 1 and 100
B is a set of multiples of 5 less than 15
C is the set of product of the no.s in set A and B
65)cola) the least possible prime no in set C
colb) 0
ANS A
66)Cola=7^37 * 7^36
col b= 6*(7^6)^6
66) There was a sum based on co-ordinate geomety-a parallelogram was given with one vertice at 0 and two morw in +ve xy plane-we were asked to find the 4 th co-ordinate
Guys geometry was sort of vauge
(5x+6/5x-6) =columa
(5x-6)/(5x+)=col b
67)volume of sphere with radius r is 4/3 pie r cube
if radius of sphere is 2r then how many times more than first sphere.
sorry i didnt remember options
68) x1,x2......x6 are numbers such that every number is 1/2 less than previous number
if x2+x4+x6=42
x1+x3+x5=
a)24
b)42
c)84
d)104
69) its comparison questioin
y(y+1)<0
sorry im not sure with cola colb
but easy to solve
70) xy<0
cola colb
/x+y/ /x/+/y/
71) fig was shown in exam
u try to anylise it
given a circle 72 deg of the circle is shaded, now crcle will look like sector with x,a,b points on the sector. area of shaded region (sector) was 5pie\9
find length of arc.
a)pi\3
b)pi\4
c)pi\2
d)5pi\2
e) 3pi\2
72) two points on coordinate axis r given (3,3) (-5,-5) which lie on line l and line k is perpendicular to l.
options include two pairs of ponts ex:(7,-3) (3,8)
asked to find ponits which do not lie on line
73) given a square ABCD and E and F are the midponits of sides CD and DAthen wht is d ratio of area of the traiangle BEA and the square ABCD...
options were...
1) 3/8
2) 5/8
....... nd somomore...but i think ans is in btn dese two only...
74)data interpretation questn was given and asked a probability question in it....
ans 4 it is 6/12=0.5
question i remember slightly.....
given a chart as..on x-axis is no. of applicants and on y- axis is no.of diseases....
asked 4 wat is the probability of applicants joining in the hospital who has less than 4 diseases....something like that was d questn..it was very easy one...
75) the average length of 5 frogs is 4.7m. another 5 frogs lenth are ( given some 5 no.'s here) like 4.5,5....( this questions is repeating many times rite from sep 3rd..so practice well)
cola....standard deviation of the lengths of 1st 5 frogs
colb.....standard deviatn of next 5 frogs.....
76)the near value of 10000 + sqrt(568.01+ 623.01)
a) 5000( no was in some 500 change)
b) 6000
c) 9000
d) 10100
e)20200
10000+ answer would be more dan 10000 only..so eliminate a,b,c optns.now answer is in d and e...e is too big 4 d answer becoz it is just adding a sqrt of two no.s (which will be less dan 10000) to 10000..so ans is d
77)xyz=0 x>y
col a.....xz colb..... yz
and ans 4 it is D..since if u take z=0 den ans is c and if u take y=0 (becoz x cant be 0 as x>y) and x=1 and z=2..den ans is a..so dats y d final ans is d
78) Two cylindrical containers are there. One with internal radius 3 inches
Other with internal radius 6 inches. The 3 inch cylinder is of 10 inch
Height of which upto 9 inches was filled with a liquid. What would be?
The depth of the the liquid in the 2nd container if 1st container is
Emptied into the second container (previously empty)
Ans: 2.25 inches
79) There are 4 officers and 5 jawans. In how many ways a group of 6 people
Can be formed if the group consists exactly 1 officer
80) The vertices of square S are (-1,-2), (-1, 1), (2,-2) and (2, 1)
What is the point where the diagonals of the square S meet?
81)col a:(2^8)*(15^5)+(2^8)*(15^5)
col b:(5^10)*(8^2)
Answer B
81)set A contain 20 different natural numbers
column A:
probability of selecting one of the no.s from set A
column B:maximum probability of selecting median of the20 natural number from set A
82)A man born in the month of feb
colomn A :Probability of being born on sunday if it was a leap year(366 days)
colomn B: Probability of being born on suday if it was a non leap year
82)symbolic representation problem very time consumed one given dat x*=(x-1)/x condition is x<0 not necessary find which of d following is true
a)2x*=2(x*)
b)-x*=x*
c)(x-1)*/x=x*...
qn not clear, perheps answer is A
83)cola:0.0001/0.9 + 2.456/1.294
colb:5.563/2.78 + 13.569/5.265
Answer B
84)column A:If it rains on next saturday, the probability that a match will get postponed is 0.95. colunm B: probability of the match getting postponed if it doesn't rain next saturday 0.03
85)in a party a man makes 3 kinds of meat.1pound of lamb feeds 3 guests.1pound ofbeef feeds 4 guests n 1 pound of ham feeds 6 guests.on the whole he prepares 36 pounds of meat.how many guests is he serving?
if x1,x2,x3,x4,x5x6 are in series for every numb in the series the next value becomes 1/2 of the first value...where x1+x3+x5=42...then what x2+x4+x5....
a)84
b)21
86)m n are positive integers
.col a: 1/ (2m) ^n^m
col b: 1/2^mn
ans is D
consider m=n=1den A is equal to BDEN CONSIDER DIFF VALUES OF M AND N hence ans is D
87)He have given 3 bags all have red and white marbles: in first bag 4r n6w second bag: 5r, 6w and third bag 5 red 5 w, they asked: if oneMarble is taken from first bag and transfer to second bag what is theProbability that it is red?
ans: 4/10
88)7^343 find the units place for the expansion?
a)1 b)3 c)7 d)9 e)11
answer is 3
89)If X is a positive integer and when divided by 7 has the remainder 3, then what is the remainder when x^2-5 is divided by 7?
90)1979 approximately of the 37.3 million airline passengers traveling to or from the United States used Kennedy Airport. If the number of such passengers that used Miami Airport was the number that used Kennedy Airport and 4 times the number that used Logan Airport, approximately how many millions of these passengers used Logan Airport that year?'
(A) 18.6(B) 9.3(C) 6.2(D) 3.1(E) 1.6
91)an examination paper contains 8 questions of which 4 have 3 possible answers,3 have2 possible answers each and the remaining one question has 5 possible answers.the total number of possible answers to all the questions is :A) 3240B) 94C) 78D) 2880E) 36
92). the number of 5 digit telephone numbers having atleast one of their digits repeated isA) 90000B) 100000C) 30240D) 69760E) 69000
93)the number of ways in which 8 different flowers can be seated to form a garland sothat 4 particular flowers are never seperated is :
A) 4!4!B) 288C) 8!/4!D) 5!4!E) 8!4!
94)an examination paper contains 8 questions of which 4 have 3 possible answers,3 have2 possible answers each and the remaining one question has 5 possible answers.the total number of possible answers to all the questions is :
A) 3240B) 94C) 78D) 2880E) 36
95)7^343 find the units place for the expansion?
a)1 b)3 c)7 d)9 e)11
96)assume a triangle which its two sides are 4 and 25 and the third number is an prime number , and was asked to find out the perimeter of the trinagle
97) plan of a house givn livin room wth measurements 12 n 14 feet thr should be a circular carpet on the floor the gr8st diamtr of the carpet so that its atleast 1 feet away from the wall
98)in a series a1,a2,a3,_____,an,_____ if a1=2 and a(n+1)=(an-1)2 i.e (an-1) squarethen a17=?
99)A triangle has its two sides equal to 4 and 25 units, and the third number is a prime number, What is the perimeter of the trinagle?
a)48 b)52 c)53 d) 58
100)col A ) 3^50 / 4^50
col B) 6^25 / 8^25
101) x < -5 col a) x+5 col b) x+5 102) XYZ > 0 & X>Y
Col A Col B
XZ. YZ.
103) A circle is drawn inside an other circle, the center of both circles are the same, the radius of the first circle is X and the radius of the second circle is X+Y , we are asked to find out the probability that if a point is taken from the circle the point should lie in the smaller circle of radius X. ans) x^2 / (x+y)^2
104)S = 1 - 1/2 +1/3 -1/4 +1/5 - 1/6 +1/7 -1/8 +1/9 - 1/10
Col A: S
Col B: 1/2
the ans is A
105) How many 4-digit numbers begin with an odd digit and end with an even digit?
A. 250
B.500
C:2000
D:2500
E:5000
the ans is 2500
106)A distillate flows into an empty 64-gallon drum at spout A and out of the drum at spout B. If the rate of flow through A is 2 gallons per hour, how many gallons per hour must flow out at spout B so that the drum is full in exactly 96 hours?
A: 3/8
B:1/2
C:2/3
D:4/3
E:8/3
107)1). In a survey 40% people had at least a dog, 30% people had at least a cat. 40% people did not have either a dog nor a cat. What percent of people who were surveyed and had a dog also had a cat.
a)10%
b)20%
c)25%
d)50%
108) col a 4^50/5^50
col b 8^25/10^253)
109)col a: (-1)^(x+y)
col b: (-1)^(x+y)/2
where x and y are even positive integers.
ans is D
110)the usual xyz>0 and xy>0
col a: xz
col b: yz
this quest is repeating so make note…ans is D
111)5. n-5<3 (n is an integer)What is the median of the set of values of n?
a) five b) six c)seven d)Eight
ans a)
112). A stone is dropped in a pond which causes circular ripples. The radius of the ripple is increased by x every second. If after 10 seconds the area enclosed by the circular ripple is 400 pie. What is x?
a)2 b)4 c)sqrt 200 d) sqrt 400
113). If x!=0, y!=0, x+y!=0;
col a : x^-3 + y^-3
col b : (x+y)^-34.
114) if x*y^2<0
col a : x^7
col b : y^75.
115)There was a co-ordinate geometry problem. a trapezoid with points (0,0), (0,3), (4,5), (3,0). Find the area of the trapezoid.
a)12.5 b)13.5 c)14.5 d)15.56.
116)In a survey 40% ppl had atleast a dog, 30% ppl had atleast a cat. 40% ppl did not have either a dog nor a cat. What percent of ppl who were surveyed and had a dog also had a cat.
a)10% b)20% c)25% d)50%7. 0<1col>
117). n-5<3 (n is an integer)What is the median of the set of values of n?
a) five b) six c)seven d)Eight
118))a sidewalk in stadium meant fr spectators is 10ft wide n 1.5mile in length......if 1 person requires 6sq.ft, how many spectators can it accomodate?
(1.5 miles=XXXX ft)Sol. very simple, find area of the sidewalk n divide by 6.........was gettin ans as 14000 spsectators........
119)A eqilateral triangle OAB of side 5cm is there in X-Y plane with side OA as base on th Y-axis.....was reqd to find slope of line AB.......
120) col a 4^50/5^50
col b 8^25/10^25
Ans :col a= 4^25*4^25/5^25* 5^25
col b= 2^25* 4^25/ 2^25 * 5^25
so clearly col a greater
120) A is a set of multiples of 3 between 1 and 100B is a set of multiples of 5 less than 15C is the set of product of the no.s in set A and B
cola) the least possible prime no in set C
colb) 0
ans is...A
121)Roger sold a watch at a profit of 10%. If he had bought it at 10% less and sold it for $13 less he would have made a profit of 15%. What is the cost price of the watch?$220 $300 $400 $480 $540
122)Mr.X sold an article at 10% loss. Had he bought it for 20% less and sold it for 77 Rs more he would have gained 30%. Find its Cost Price?1) 500 2) 550 3) 600 4) 650
123)if the measure of one angle of a rhombus is 60 degrees then the ratio of its longer digonal to the length of its shorter diagonal is a)2 b) root3 c) rooot2 d)root3/2 e)root2/2
124)r lives 4 km due west of p's house, A lives 6 km due north of p;s house and 4 km due west of david's house what is the straight line dist in km from r house to d's housea)4 b) 5 c) 8 d) 10
125)1. the number of 2 digit even numbers that can be formed from the digits 1,2,3,4 and 5 if repititions are not allowed is :
A) 8! B) 5! C) 2^6 D) 16 E) 16!
126). the number of ways in which 8 different flowers can be seated to form a garland so that 4 particular flowers are never seperated is :
A) 4!4! B) 288 C) 8!/4! D) 5!4! E) 8!4!3.
127) an examination paper contains 8 questions of which 4 have 3 possible answers,3 have 2 possible answers each and the remaining one question has 5 possible answers.the total number of possible answers to all the questions is :A) 3240 B) 94 C) 78 D) 2880 E) 364.
128)the number of 2 digit even numbers formed from the digits 1,2,3,4,5 and 6 if repetitions of digits is not allowedA) 6 B) 9 C) 5 D) 15 E) 175.
129)a box contains 2 white balls,3 black balls and 4 red balls.the number of ways in which 3 balls can be drawn from the box so that atleast one of the balls is black is
A) 74 B) 64 C) 94 D) 20 E)246.
130)the number of 5 digit telephone numbers having atleast one of their digits repeated is
A) 90000 B) 100000 C) 30240 D) 69760 E) 690007.
131)the number of 4 digit even numbers that can be formed using 0,1,2,3,4,5,6 without repetition is A) 120B) 300C) 420D) 20E) 42
132)3^-1+3^-2+3^-3+3^-4=?
A)3^-6
B)12(3^-6)
C)13(3^-3)
133)3y-4x=12=0 find its y-intersection
134)x,2x,x^2 its arthimatic mean is 12 find its range
135)Probabability that event A happens is 0.5 and prob that evnt B occurs is .6 ..wats the probability that neither of the event occurs
136)a labour is engaged for 30 days on condition tht he recieves $25 for each day he works and he is fined $7.5 for each day he absent from work.he gets $425 in all for how many days he was absent.
137).at simple intrest $400 becomes $480 in 2 yr.if rate of intrest increased by 2% the total amount will become.
138):the difference btw compound intrest and simple intreset on certain sum of money in 2 yrs at 8% is $8.find the sum.
139):find the compound intrest on $6250 for one year at 8% per annum bieng given when intrest is reckoned half yearly
140)given a square ABCD and E and F are the midponits of sides CD and DAthen wht is d ratio of area of the traiangle BEA and the square ABCD...options were...1) 3/82) 5/8....... nd somomore
141) the average length of 5 frogs is 4.7m. another 5 frogs lenth are ( given some 5 no.'s here) like 4.5,5....( this questions is repeating many times rite from sep 3rd..so practice well)cola....standard deviation of the lengths of 1st 5 frogs
colb.....standard deviatn of next 5 frogs.....
142)the near value of 10000 + sqrt(568.01+ 623.01)
a) 5000( no was in some 500 change)
b) 6000
c) 9000
d) 10100
e)20200the correct
ans 4 it is d...
143) set A contain 20 different natural numbers
column A:
probability of selecting one of the no.s from set A
column B:probability of selecting median of the 20 natural number from set A
144)set A contain 20 different natural numbers
column A:
probability of selecting one of the no.s from set A
column B:maximum probability of selecting median of the20 natural number from set A
145)A man born in the month of feb
colomn A :Probability of being born on sunday if it was a leap year(366 days)
colomn B: Probability of being born on suday if it was a non leap year
146) x>11
col a)no.of prime no.s between x and 2x
col b) 6
147)the mean of apples in the basket is 4.0.standard deviation of the apples is 0.8.If one of the apple is 1.5standard devians of the mean.
ColA==>weight of the apple
ColB==>3.5
148) In a company 23% of them are old people and above 15 yerars of experience and 76% are young people.. the 24% of the whole firm are below 15 years of experience... what is the % of apeople having below 15 yers experience and young person..??
149)This is about Avg marks of students in 3 classes
Class average
Class 1 82
Class2 88
Class3 90
Overall avg
Of 3 classes 86
150)Col a Col b
No. of students No. of students
in class1 in class2
151)x^2=(y^2)+4 y<0
col a---x
col b---y
152)The arithmatic mean of 2,x,y,7 is 3.What is the median?
a)-1
b)-2
c)-3
4)-4
5)-5
153)the was a cuboid having dimensions 3,3,4
the ques type was QCPS..
A B
The Area of one of the part 44
when the cuboid is cut diagonally
ans is A
154) A B
(x^-2)^-4 x^8
ans C
155) A survey was cconducted and people were asked to choose a digit from 1,2,3,4;
The results were
Nos Frequency
1 10
2 30
3 20
4 30
he Q was QC..
A B
The Average of the numbers 2.5
ans is = 1*10+2*30+3*20+4*30/90=250/90=25/9<2.5
ans is B
the Q was QC..
156)The Prob of A hitting the target is 0.4,B hitting the target is 0.6,
Find the probability of both A and B not hitting the target?
prob of Ant hitg target is 0.6 n B is 0.4 so ans is 0.24
Dont remember the options
157)the number of 5 digit telephone numbers having atleast one of their digits repeated is
A) 90000 B) 100000 C) 30240 D) 69760 E) 690007.
ans is 10*10*10*10*10-10*9*8*7*6= 69760
157)Col A
|(1/5) - (1/10)|
col B :- 1
158)the was a cuboid having dimensions 3,3,4
the ques type was QCPS..
A :
The Area of one of the part
when the cuboid is cut diagonally
B: 44
159) A
(x^-2)^-4
B :- x^8
160)the number plate can have 3 letters followed by 4 digits,repetition allowed,
if the letters are A,F,G the different no of ways the number plate can be made...
No standard deviation for me..
161) A survey was cconducted and people were asked to choose a digit from 1,2,3,4;
The results were
Table A
Nos :-1,2,3,4
Tablel B
Frequency :- 10,30,20,20
the Q was QC..
Col A
The Average of the numbers
Col B:- 2.5
162)Data Interpretation was Horrible...
Practice DI if u wanna crack quants..
163)The Prob of A hitting the target is 0.4,B hitting the target is 0.6,
Find the probability of both A and B not hitting the target?
Dont remember the options
164)there was this condition given,
-2>|x|>7
and there were a few diagrams below depicting this condition...
we need to choose the appropriate one..
u'll can find this kinda Q in Big book...dnt remember the test no..
165) two event independent one have probelity 0.50 and other event have 0.630 what is probelity of none of this event occur?
1.0.11
2.0.18
3.0.32
4.0.44
ans= 0.18
166)a car goes around a circle of radius of 14km in the first round it travels with a speed of 11km/hr in sud sequent rounds its speed increases by 11km/hr in each round how much time does the car take to cover a dist of 440km
sol) given r=14
=> 2pi r = 88 approx...
so 440/88 = 5
now the speeds are 11,22,33,44,55
in 5 laps the dist is covered... now the times are... 88/11=8
88/22=4
88/33=2 2/3
88/44=2
88/55=1 3/5
so summing them up.... C
167) 3 marrige couple set in 6 seat how many way they can seat than husband and wife together like that?
ans== 3!2!2!2! i think
168) columa A columa B
square(sqrt(square x) ) - square(sqrt(square y) ) (x-y)(x+y)
Ans== c
169) A lift have maximaum capicity of 20 bundal each have x weight. other wise it 30 bundal each have weight y weight.if a person put 12 bundal of weight y than how many x weight bundal we can put?
1.4
2.8
3.10
4.12
5.18
i think ans is 12
170) which of the following is sum of 5 consicutive integer no?
1.10
2.15
3.20
4.25
5.28
ans.25
171> two event independent one have probelity 0.50 and other event have 0.630 what is probelity of none of this event occur?
1.0.11
2.0.18
3.0.32
4.0.44
172)A man born in the month of feb
colomn A :Probability of being born on sunday if it was a leap year(366 days)
colomn B: Probability of being born on suday if it was a non leap year
ans C
173)in a party a man makes 3 kinds of meat.1pound of lamb feeds 3 guests.1pound ofbeef feeds 4 guests n 1 pound of ham feeds 6 guests.on the whole he prepares 36 pounds of meat.how many guests is he serving?
ans : 156]
174)the number of ways in which 8 different flowers can be seated to form a garland so that 4 particular flowers are never seperated is :
A) 4!4!
B) 288
C) 8!/4!
D) 5!4!
E) 8!4!
-> i think ans is D.
175)(x+2)^(x+2)<-1
cola x
colb -1
ans: B
176)If a man works for an entire year,he earns an amount...But if he works for 6 months and completes his work,wat was his ratio of efforts that he put in the 6 months to his expected effort?(The questw was big...jus rephrasin it)
ans:2:1
177)wat is the probability of picking 12 soldiers from a camp of 15 soldiers if 5 soldiers are injured?
ans: i think 10*5C2
178)Probabability that event A happens is 0.5 and prob that evnt B occurs is .6 ..wats the probability that neither of the event occurs
ans: 0.7
179)prabablity that it rains on Monday but not on Tuesday is ….. units and it rains on Tuesday but not on monday is … units … find probability that it rains o both of the day
180)90Col A Col B
The perimeter of the Triangle 24
q in complete
181)symbolic representation problem very time consumed one given dat x*=(x-1)/x condition is x<0 not necessary find which of d following is true
a)2x*=2(x*)
b)-x*=x*
c)(x-1)*/x=x*...
d)(x*)*=x
ans: none of the abo
182)the number of 2 digit even numbers that can be formed from the digits 1,2,3,4 and 5 if repititions are not allowed is :
A) 8!
B) 5!
C) 2^6
D) 16
E) 16!
ans:D
183)the number of ways in which 8 different flowers can be seated to form a garland so that 4 particular flowers are never seperated is :
A) 4!4!
B) 288
C) 8!/4!
D) 5!4!
E) 8!4!
ans A
184)a box contains 2 white balls,3 black balls and 4 red balls.the number of ways in which 3 balls can be drawn from the box so that atleast one of the balls is black is
A) 74
B) 64
C) 94
D) 20
E) 24
ANS – B
185)the number of 4 digit even numbers that can be formed using 0,1,2,3,4,5,6 without repetition is
A) 120
B) 300
C) 420
D) 20
E) 42 ANS C
1)(x+2)^(x+2)<-1
cola x
colb -1
ans: B
186)If a man works for an entire year,he earns an amount...But if he works for 6 months and completes his work,wat was his ratio of efforts that he put in the 6 months to his expected effort?(The questw was big...jus rephrasin it)
ans:2:1
187)wat is the probability of picking 12 soldiers from a camp of 15 soldiers if 5 soldiers are injured?
ans: i think 10*5C2
188)Probabability that event A happens is 0.5 and prob that evnt B occurs is .6 ..wats the probability that neither of the event occurs
ans: 0.7
189)prabablity that it rains on Monday but not on Tuesday is ….. units and it rains on Tuesday but not on monday is … units … find probability that it rains o both of the day
190)90Col A Col B
The perimeter of the Triangle 24
q in complete
190)symbolic representation problem very time consumed one given dat x*=(x-1)/x condition is x<0 not necessary find which of d following is true
a)2x*=2(x*)
b)-x*=x*
c)(x-1)*/x=x*...
d)(x*)*=x
ans: none of the abo
191)the number of 2 digit even numbers that can be formed from the digits 1,2,3,4 and 5 if repititions are not allowed is :
A) 8!
B) 5!
C) 2^6
D) 16
E) 16!
ans:D
192)the number of ways in which 8 different flowers can be seated to form a garland so that 4 particular flowers are never seperated is :
A) 4!4!
B) 288
C) 8!/4!
D) 5!4!
E) 8!4!
ans A
193)a box contains 2 white balls,3 black balls and 4 red balls.the number of ways in which 3 balls can be drawn from the box so that atleast one of the balls is black is
A) 74
B) 64
C) 94
D) 20
E) 24
ANS – B
194)the number of 4 digit even numbers that can be formed using 0,1,2,3,4,5,6 without repetition is
A) 120
B) 300
C) 420
D) 20
E) 42 ANS C
195) Probabability that event A happens is 0.5 and prob that evnt B occurs is .6 ..wats the probability that neither of the event occurs1
196) A triangle has its two sides equal to 4 and 25 units, and the third number is a prime number, What is the perimeter of the trinagle?
a)48 b)52 c)53 d) 56e)58
197) A is aset of odd numbers less than 100 B is a set of even numbers less than 5 C is a set of numbers of products of A and B
198)cola-number of numbers in A
colb-100
199)1/x= 2/y^2 +1
1/x=(2+y^2)/y^2
x=y^2/(2+y^2)
then comparing this wid y^2/2
y^2/2 > y^2/(2+y^2)
ans is B
200)x+5 when divided by 3 leaves a remainder 2..
col A: remainder whn x is divided by 2
col B: 1
ans is D bcoz x will be 3, 6 when 3 diveded by 2 rem is 1 n with 6 it is 0
201) Jar contains 10 green, 9 black, 6 red, a ball is chosen at random replaced then what is the least possible no of draw u make so that u will be confident that u have at least 2 balls of same color
the probability is 10c2+9c2+6c2/25c2=8/25
202)at a factory the num of units rejected by quality control in january was 7% of total no of units produced and in february *8%of total no of units produced.if the % of units rejected in both jan and feb combinde was 7.8% then what was the ratio of total no of units produced in jan to the total produced in feba.1:4 b4:1 c 4:5 d.5:4 e none
ans is 1:4 bcoz let x be toatl no pf production in jan n y for feb 7x+8y=7.8(x+y),0.8x=0.2y,x/y=1/4
203)|n-5|<3 (n is an integer)What is the median of the set of values of n?
a) five b) six c)seven d)Eight
n-5<+-3 so 2
204)a line in the xy plane passes thru (a,0) and (0,a)and (-4,-4) and given that a is not = 0.
find a. let( x1,y1)(x2,y2) be (a,0) n (0,a) so convert to y=mx+c we get y=-x+a substitute (-4,-4) in this equation we get -4=4+a so a=8
205)S={15, 10, 11, x and y} and X+y=11
which is the least positive integer in the set S?
a.2
b.3
c.9
d.5
e.6
ans is 2
206)given X^-1=2/y^2+1
col a
x
col b
y^2/2
Ans: a
207)S={15, 10, 11, x and y} and X+y=11
which is the least positive integer in the set S?
a.2
b.3
c.9
d.5
e.6
208)n, k are two positive integers
col.a
k^2+n
col b
k^n/2
ans:col a
209)col a:
7^37-7^36
col b
7(6^6)
ans:A
solve 1000+sqrt(589.1)(604.1)
ans a.2200
210). if |x-3|=5 and |x+1|=3 then the vaule of x must lie on the following ?
five options are given out of them four are mistakes.
211). -----------------------
\ | | \
\ | 4 | \
\ | | \
----------------------
8
then find the area of the parallelogram?
212). if p=20%of q and q is 50% of r then find value of p if p+q+r=48.
213). when a stone is thrown in water ripples are created the radius of the ripples increases x times per every sec after 10 sec the largest ripple has the area 400*pi then find the radius of the largest ripple formed?
214)(0,0),(0,3),(3,0),(4,5) area of the figure formed by this points (diagram given in the question).
215)cylinber of height 10 and radius 4 is given and asked to find the max distance between two points.
answer: to find the diagnol it is "2root(41)"
216)M is the set of numbers satisfying mod(n-5)<3 then the median of the set M is
a)4
b)4.5 " ANS: 5 "
c)3.5
d)5
e)5.5
217)p is 20% of q and q is 50% of r. and p+q+r=48 value of p is?
ANS: 3
218)F=9C/5+32 formula for cel to fah conversion and if we approximate it as F=2C+28 If C=30 then the approximation value is
219)2f greater
b)2f lower here f is "fahreinheit" and c is "celcius"
c) no change ANS : 2F greater
d)2c greater
e)2c lower
220)33^99 99^33
221). (x+2)^(x+2)<-1
cola x
colb -1
222) In a survey 40% ppl had atleast a dog, 30% ppl had atleast a cat. 40% ppl did not have either a dog nor a cat. What percent of ppl who were surveyed and had a dog also had a cat.
a)10% b)20% c)25% d)50%ans 10%
223) A watch gains 7 minutes and 6 seconds every 6 days.If the rate of gain is constant how much does the watch gain in 1 day?
224) wat is the probability of picking 12 soldiers from a camp of 15 soldiers if 5 soldiers are injured?
225)If a man works for an entire year,he earns an amount...But if he works for 6 months and completes his work,wat was his ratio of efforts that he put in the 6 months to his expected effort?
226)w x y z are non negative.w3^3 + x3^2 + y3 + z =34wat w+z..?? 9)n-5<3>
a) five b) six c)seven d)Eight
227)The number of 5 digit telephone numbers having atleast one of their digits repeated is
A) 90000B) 100000C) 30240D) 69760E) 69000
228)In 1979 the average homeheating cost in central region was same as avg for entire country, in 1980 central avg cost incrsd by $260 per home, an incrs of 25% over 1979. if in 1080 avg cost of of entire cntry incrsd by 22%, wat was avg incrs in cost per home for entire ountry?
229)a certian number of men can do the work in 48 days,if there are were 8 men more it could be finished in 6 days less.how many men are there
230)let the number of men be Xthen X*48=(X+8)42 solve for X 13)solve this
col a:(2^8)*(15^5)+(2^8)*(15^5)
col b:(5^10)*(8^2) 14)
Which of the following is 850 percent greater than 8 x 103?
(A) 8.5 x 103(B) 6.4 x 104(C) 6.8 x 104(D) 7.6 x 104(E) 1.6 x 105
231) A vending machine dispenses gumballs in a regularly repeating cycleof ten different colors. If a quarter buys 3 gumballs, what is theminimum amount of money that must be spent before three gumballs of thesame color are dispensed?
(A) $1.00(B) $1.75(C) $2.00(D) $2.25(E) $2.50
232)which one below equations have the infinite no. of solution out of 5 option 3 wer linear eq's which has only 1 soln other 2 options wer i)2x-y=-5 & ii)2x-y=5 &4x-2y=5 6x-3y=-15
233)Probabability that event A happens is 0.5 and prob that evnt B occurs is .6 ..wats the probability that neither of the event occurs
234)Probability that it will rain on monday and not on tuesday is 0.4 Probability that it will rain on tuesday and not on monday is 0.2.
Cola: Probability that it will not rain on both the days
Colb: 0.35
235) a ladder was resting on the wall of it moves “X” units vertically and “Y” units horizontally campare X and Y 20) prabablity that it rains on Monday but not on Tuesday is ….. units and it rains on Tuesday but not on mmonday is … units … find probability that it rains o both of the day
236) in rectangular cuboid the face diognal was given,alonghwith the main diognal and also the length …. Had to find the volume ….. ans just apply phythagoras and also that l^2+b^2+k^2=main diognal^2.
237) Probabability that event A happens is 0.5 and prob that evnt B occurs is .6 ..wats the probability that neither of the event occurs
238)A tabulated colums r given.classes medianscore no of studentsclassA 74 50classB 78 65cola colBmedian score of 115 stdnds 76wats is the answer
239)How many positive integers exist between 10^6 and 10^7, the sum ofwhose digits equal to 2 ?
A) 5B) 6C) 7D) 8E) 18
240)By selling 12 marbles for a rupee, a man loses 20%.in order to gain 20% in the transaction, he must sell marbles at the rate of?
a) 7 for a rupeeb) 5 for a rupeec) 8 for a rupeed) 10 for a rupee
241)the number of ways to asign a number from 1 to 5 to each of four people.
1st person can be assigned in 5! ways2nd can be assigned in 4! ways (1 no is already assigned)3rd in 3! ways 4 in 2! ways
Hence sol is: 5!*4!*3!*2!
242)each person of a party shock hands exactly once with each of other people at the party. there was total of 21 handshakes exchanged at the party find the no. of people at the party
the answer is 7.
243)what is the probabilty that a randumly selected two digit no is a multiple of 14.
there are total 90 2 digit nos. (10 thru 99)among them multiples of 14 are 14,28,42,56,70,84,98
hence probability is 7/90
244)In a commty there are W women and M men then 3 women and 5 men have joined. if a person is selected at radom from this enlarged commty. what is the probabilty for selected person to be a women
total women=W+3total men=M+5
total comm members = M+W+8
probability of the selected person to be woman is (W+3)/(M+W+8)
245)a bag contains 15 tickets numbered from one to fifteen. a tickt is drawn and then another ticket is draw with out replacement find the probabilty that tickects will show even no.
246)a jars has 3 black marbles and 5 red marbles what is the problt that one red and one black will be picked with out replacing the marbles
probability of selected marble to be black is 3/8 and than of red is 5/7if inverse is the case than for black, it is 5/8 and for red 3/7
so answer must be 15/28
Some more threads..
1)a no lies b/w 10 and 30 which are prime no
col a: the no unit digits which should not be repeated
col b: the no tens digit which should not be repeated
Sol. A
Prime numbers are 11, 13, 17, 19, 23, 29
ColA: 4 {1,3,7,9}
ColB: 2 {1,2}
Answer A
2)there are X books with Y pages in each book and with Z words in each pages.
col A total no. of words in all books
col B XY/Z
SOL: 1 pages comtain Z words, so Y pages hav Y*Z words
1 book has Y pages or YZ words, so X books has XYZ words,,,
answer is A
3) Given a circle 72 deg of the circle is shaded, now crcle will look like sector with x,a,b points on the sector. area of shaded region (sector) was 5pie\9
find length of arc.
a)pi\3
b)pi\4
c)pi\2
d)5pi\2
e) 2pi\3
SOL: since the sector is making 72 degrees, so it is 1/5th of the full circle.
so area of circle = 5* area of sector = 25pie/9
or pie*r^2 = 25pie/9 or radius, r = 5/3
length of arc = angle of sector * radius = 72 * (pie/180) * 5/3 = 2pie/3
2) if n and d are positive integers such that n is a multiple of d,
how many positive multiples of d are less than or equal to n...
SOL: its given that "n" is the multiple of "d", so let n = x*d or x = n / d..this is the answer
eg. 80 is a multiple of 8,,,then
positive multiples of d are less than or equal to n = 80/8 = 10
it means, b/w 8 & 80, there r 10 more multiples of 8.
1)X^2=2xy+y^2=36
y>3
col a=x
col b=y
ans y
2) a line makes 2 intercepts(0,-5) and (2,3)
eq of the line:y=mx+b
the m+b=?
ans sub the intercept values in the eq
u get b=-5 and m=4
m+b=-1
26) The average length of 5 frogs is 4.7m. another 5 frogs length are ( given some 5 no.'s here) like 4.5,5....( this questions is repeating many times rite from sep 3rd..So practice well)
cola....standard deviation of the lengths of 1st 5 frog’s
colb.....standard deviation of next 5 frogs.....
Answer is D, despite insufficient data in the question... because, even if values of second series is given, one cannot make any calculation regarding the SD of the first five frogs, purely on the basis of the average...
27) (5x+6)/(5x-6) =col a
(5x-6)/(5x+6)=col b
Answer is D
take x = 0, Col A = -1 , Col B = -1
take x = 1, Col A & Col B are different, therefore D
these r some q'ns i rem:
1)the frog wala q'n,abt SD.......
Ans is D
2)a1,a2,a3.....a6 are six integers such that the next no is half the previous.....
if a2+a4+a6=42
find a1+a3+a5......
very simple sum....ans is 84
3)a sidewalk in stadium meant fr spectators is 10ft wide n 1.5mile in length......if 1 person requires 6sq.ft, how many spectators can it accomodate?(1.5 miles=XXXX ft)
Sol. very simple, find area of the sidewalk n divide by 6.........was gettin ans as 14000 spsectators........
4)(2 or sumthn)^-1, root(1.6), root(0.16), 2/5. how many quantities have value 0.4.?
Ans . 2
5)try to interpret this sum......two large squares were given each of 10cms.....in first larger square, a smaller square is created by joining midpts of each sides and in second larger square,a square is created by joining points which are 3cms away from every vertice............hope u'll get the sum.....and it was asked to compare areas of two squares..........
Ans. B
6)A eqilateral triangle OAB of side 5cm is there in X-Y plane with side OA as base on th Y-axis.....was reqd to find slope of line AB.......
ANS. pretty simple.....since base is on y-axis A(0,5), n since triangle is equi, so y-cordinate of pt B = 2.5.....now reqd to find x-cod of B......by 30-60-90 thm, find x-cord of pt B and then find slope of AB by 2-point thm.......remember slope will be -ve
Ans was -(1/root3)
7)k>n>=1
col a (k)^-n
col b (n)^-k
ans B
8) DI luckly i got simple n only two qns on it.....
9) col a 4^50/5^50
col b 8^25/10^25
Ans col a= 4^25*4^25/5^25* 5^25
col b= 2^25* 4^25/ 2^25 * 5^25
so clearly col a greater
10)n-5=z+1
col a=n-1
col b=6
ANS D
1 x<-5
cola /x+5/ colb x+5
ans A
2 xcube-xsquare-2x
cola x colb 0
4)1000 + 2 ( [586.12]^1/2 + [602.344]^1/2 )
1097.something
===========================
3.a1 = 2 , a(n+1) = (an-1)^2
find a 17
1) 0 2)1 3)-14)1/2
a1=2
a2=1
a3=0
a4=1
.
.
.
a16=1
a17=0
there fore ans 0
===============================
2.xyz = 0 and x>y
cola colb
x y
D either x or y or z can take the value 0
1. There were 36.000 hardback copies of a certain novel sold before the paperback version was issued. From the time the first paperback copy was sold until the last copy of the novel was sold. 9 times as many paperback copies as hardback copies were sold. If a total of 441.000 copies of the novel were sold in all, how many paperback copies were sold?
(A) 45.000
(B) 360.000
(C) 364.500
(D) 392.000
(E) 396.900
SOL: after first paperback released,,,,,upto last copy sold
total number of paperback copies sold = 9*total hardcopy sold
let hardcopies sold in this period = x,
then paperback sold in this period = 9x
9x + x = 441 - 36 = 405........( 441 - 36 is used coz 36 copies were sold b4 this period)
so x = 40.5,,,,or 9x = 364.5 = total paperback sold
2.) two large squares were given each of 10cms.....in first larger square, a smaller square is created by joining midpts of each sides and in second larger square,a square is created by joining points which are 3cms away from every vertice............hope u'll get the sum.....and it was asked to compare areas of two squares..........
thed diagram is available here
http://www.orkut.com/Profile.aspx?uid=7495118672678829977
SOL: area of two larger squares = 100 cm square
IN CASE OF 1ST LARGER SQUARE
area of new square formed = area of larger square - 4*area of triangle
area of new square formed = 100 - 4*(1/2)*5*5 = 50
IN CASE OF 2ND LARGER SQUARE
area of new square formed = 100 - 4*(1/2)*7*3 = 58
so answer is B,,,,
1) IN the figure both r squares having 10 units as their length.
Col A- Area of ABCD
Col B- Area of PQRS
see diagram in
http://www.orkut.com/Album.aspx?uid=7495118672678829977
2) col a 4^50/5^50
col b 8^25/10^25
3) col a: (-1)^(x+y)
col b: (-1)^(x+y)/2
where x and y are even positive integers.ans is D
4)the usual xyz>0 and xy>0
col a: xz
col b: yz
this quest is repeating so make note…ans is D
1.)In a series a1,a2,a3,_____,an,_____
if a1=2 and a(n+1)=(an-1)2 i.e (an-1) square
then a17=?
put n=1, a(1+1) = (a1-1)^2 or a2 = 1
a3 = (a2 - 1)^2 = 0
a4 = (a3-1)^2 = 1
clearly, series goes like this 2, 1, 0, 1, 0, 1, 0, 1, 0, 1,.....
hence a17 = 0
1)
columna 1/(1+1/1)
column b 2/(2+2/2)
ans is B
2)
columna 1/x+y
column b 1/x +1/y
ans is D
3) col a: (-1)^(x+y)
col b: (-1)^(x+y)/2
where x and y are even positive integers.ans is D
4)the usual xyz>0 and xy>0
col a: xz
col b: yz
…ans is D
My exam is on 14th ad i got 4-5 questions frm this thread.I really thankful to cool.the questions i got are
1.) XYZ > 0 & X>Y
Col A Col B
XZ. YZ.
Sol):
Case I: X=3, Y=2, Z=1 then col A is Greater.
Case II: X=5, Y= -2, Z= -3 then Col B is Greater
Therefore the answer is D
A triangle has its two sides equal to 4 and 25 units, and the third number is a prime number, What is the perimeter of the trinagle?
a)48 b)52 c)53 d) 58
Answer. B
Sol. sides are 4,25, so other side can be 22,23,24,25,26,27,28. {For a triangle, sum of two sides < third side}
Only possible prime number among these is 23. So, the answer is 23+4+25 = 52.
In a series a1,a2,a3,_____,an,_____
if a1=2 and a(n+1)=(an-1)^2.a>=1.
then a17=?
Ans is 0 for this.
the average length of 5 frogs is 4.7m. another 5 frogs lenth are ( given some 5 no.'s here) like 4.5,5....
( this questions is repeating many times rite from sep 3rd..so practice well)
cola....standard deviation of the lengths of 1st 5 frogs
colb.....standard deviatn of next 5 frogs.....
SOL: answer cant be determined because we cant find SD with just average lenght of frogs,,,,,so answer is D
the near value of 1000 + 2*sqrt(568.01* 623.01)
a) 2200( no was in some 500 change)
b) 5000
c) 9000
d) 10100
clearly ans is A.
You are given a square ABCD and E and F are the midponits of sides CD and DA then what is the ratio of area of the traiangle BEF and the square ABCD?
A) 3/8
B) 5/8
C)1/8
D)4/8
E)None!
Answer is A.
Sol,
Draw the figure(Its very easy to draw it). Let side of square be a.
see, now EF =Sqrt(DE^2+ FD^2) = a/sqrt2
and BE = sqrt(EC^2+BC^2) =sqrt((a/2)^2+a^2) = a/2*sqrt5
Area of BEF = 1/2*EF*BG (G is the perpendicular from B to EF)
BG^2+DE^2 = BE^2
=> BG = sqrt(5*a^2/4 - a^2/8) = 3a/2*1/sqrt2
So, Area = 1/2*a/sqrt2*3a/2*1/sqrt2 = 3a^2/8
and ans is 3/8
thanks allot for cool agai.and my DI questions are quite easy.so well guys follow this thread also.I got 1060(750 in quants and 310 in verbal).
@18th sept testtaker (thq)
given X^-1=2/y^2+1
col a
x
col b
y^2/2
Ans: a
S={15, 10, 11, x and y} and X+y=11
which is the least positive integer in the set S?
a.2
b.3
c.9
d.5
e.6
n, k are two positive integers
col.a
k^2+n
col b
k^n/2
ans:col a
col a:
7^37-7^36
col b
7(6^6)
ans:A
solve 1000+sqrt(589.1)(604.1)
ans a.2200
1 Probabability that event A happens is 0.5 and prob that evnt B occurs is .6 ..wats the probability that neither of the event occurs1
2 A triangle has its two sides equal to 4 and 25 units, and the third number is a prime number, What is the perimeter of the trinagle?
a)48 b)52 c)53 d) 56e)58
3 A is aset of odd numbers less than 100 B is a set of even numbers less than 5 C is a set of numbers of products of A and B
cola-number of numbers in A
colb-100
@18th sept testtaker (thq)
given X^-1=2/y^2+1
col a
x
col b
y^2/2
Ans: a
S={15, 10, 11, x and y} and X+y=11
which is the least positive integer in the set S?
a.2
b.3
c.9
d.5
e.6
n, k are two positive integers
col.a
k^2+n
col b
k^n/2
ans:col a
col a:
7^37-7^36
col b
7(6^6)
ans:c
solve 1000+sqrt(589.1)(604.1)
ans a.2200
20h Sep Questions
Guys i gave gre today .. math is pretty tough .. please practice with speed ..
other than that all easy one's ...
Col a col b
(-1)^((x+y)/2) (-1)^(x+y)
10, 9, 15 , x , y if x+y=11, lowest value possible such that it is distinct .. ans 3
(12 + (1/70))/(3 - (1/80)) .. ans 4
and the threads were helpful .. thanks a lot guys .. ll post when ever i remember more
5. a triangle ABC is given..also a square is given, the base of the triangle is 4 times the side of the square...then
col A col B
the altitude CD side of the square
i think ans is D
he near value of 1000 + 2*sqrt(568.01* 623.01)
a) 2200( no was in some 500 change)
b) 5000
c) 9000
d) 10100
clearly ans is A.
Q7> The nearest value of 10000 + sqrt(568.01+ 623.01)
a) 5000 ( No, It was in some 500 change)
b) 6000
c) 9000
d) 10100
e)20200
Answer D
1)sqrt154 2)2sqrt41.....
answer 2sqrt41
cola colb
x^2+x^(-1) 1/x^2+(x^-1)
avg of first 5 nos is 6 and avg of all 12 nos is 7.5.had to find avg of first 7 nos
a)8.4 b)8.5 c)8.6 d)8.7 e)8.8....i guess b is ans
there are two conc circles radius of larger one wae 6 more than smaller one had to find diff in their circumference
1)3 2)6 3)3pie 4)4pie 5)6pie.....i was getting 12 pie bt there was no such option so selected 6pie...
one rectangle abcd was given having diagonal bd.p was midpt of tat diagonal
cola colb
side cd 2/3 (pd)
1)x^-2= 1/(y+1)
cola: x2 colb: y
2) tht a17 wala question....
3)two circles r given one is incribed in another
the inner circle radiue is x.....
outer circle radius is (x+y)..
qns is wat is the probability that the point is taken that lie in inner circle
1) pi(x^2-y^2) 2) x/(x+y) 3)x^2/(x^2+y^2) 4) pi(x-y )^2
4)There are 84 people who watch television and 72 members use pagers and X members watch only Television .
Col A Col B
Number of people use only pagers X – 12
Sol: Draw a Venn diagram
Total number of ppl who watch television = 84.
No of ppl who watch TV and use pager = 84-X
Number of ppl who use only pager = 72- ( 84 – X )
= 72- 84 + X
= X- 12
Therefore C is the answer.
i got this , which is very important....
5)Volume of a sphere with radius r is 4/3*pie*(r cube), now if radius of another sphere is 2r then how many times more than first sphere.
A.)16
B)8
C)4
D)2
E)1
6)) xy<0
cola colb
/x+y/ /x/+/y/
7)col a : 7^37 - 7^36 colb: 6(7^36)
8)there k consecutive integers or no's i dont remeber properly... such they r positive and M is the median and R is range
a)M
b)R
c)M-1
d)R+1
e)M+R ( i dont remeber last option...
but ans is D
9) A cross line L was given in X-Y coordinate with (0,-b) and (3b,0) was asked to find out slope
cola: slope of line L colb: -1/2
BLOGSPOT
1)col a:(2^8)*(15^5)+(2^8)*(15^5)
col b:(5^10)*(8^2)
Ans- B
2) Given that x*=(x-1)/x condition is x<0 x="x*..." x=" 9000/600" 99 =" 3^99" 33 =" 9^33" y="-5" y="5" 2y="5" 3y="-15" cube="X" cube="Xroot2" surface="Xroot2*X=" 2="main"> 0 & X>Y
Col A -------------------XZ
Col B-------------------YZ.
Sol: Case I: X=3, Y=2, Z=1 then col A is Greater.
Case II: X=5, Y= -2, Z= -3 then Col B is Greater
Therefore the answer is D
16) xy<0
cola-------------------/xy/
colb-------------- /x/+/y/
ans) D
