rakibeeebuet

1. A 1. E

the answer will be: 3!*4!=144

ans to q 1: 2c1*4c1*7c1+2c1*4c1*3c1=80

one thing will help all that if we decrease the smallest number than the product will be decreased more but if we increase the smallest number than the product will be increased more so obviously B is greater than A.

yes it wil be: 7/12

7.If the probability of selecting 80% & higher percentage of persons for a job in a company is 0.65, then Col A: The propability of selecting persons who have less than 80% Col B: 0.35 solution: the answer is C.

If the sum of digits of a two digit number xy is 6 more than the difference between the digit at tenth place and unit digit then find the value of y? A.1 B. 2 C. 3 D. 4 E. Cannot be determined the answer will be C x+y=x-y+6 y=3

A person is supposed to collect 3 out of 5 accessories & 4 out of 5 accessories. How many such combinations can he come out of this? solution: the answer is: 5c3*5c4

1. y=-1/2 x + c x intercept = 2c y intercept = c so the answer will be A

i think computer bot is wrong. it will be: 1000x+(z-1000)y

i think the problem is not relevant for GRE. it must take few minutes to solve.

I think the language in the problem is little tricky that puzzled everyone.

i think the answers should be d and c

From the set of positive even integers between 1 and 9, 2 digits are to be chosen at random. What is the probability that the 2 digits sum to 8? solution: The set is={2,4,6,8} the only sum possible here is, 2+6=8 (only one favorable date set) but with two numbers there are 4c2=6 sum possible. (2+4 4+6 6+8 2+6 2+8 4+8) so probability=1/6

If x and y are prime numbers greater than 10 then which of the following is an even integer? A. x^2*y2 B. x^y +2 C. xy +2 D. 2xy +xy Solution: here is the answer: only A will be even as it is multiplied by 2. Except A all others are odd.

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 2gallons per hour, how many gallons per hour must flow out at spout B so that the drum is full in exaclty 96 hours? a) 3/8 b) 1/2 c) 2/3 d) 4/3 e) 83 Solution: Let x is the outflow rate through spout B. So, 2*96-x*96=64 solving, x=4/3 So the answer is D.:tup:

U R WRONG I THINK. as there is no obligation so any combination is possible. lets it be 3555555 no box with more than 5 balls no box contains 4 balls also no box is empty. So none of the answers is true.

f there are are 33 balls arranged in 7 boxes which of the following is true. (i) at lest one box has more than 5 (ii) there are more than one boxes with 4 (iii) there is atleast one box empty A. I only B. ii only C. i and ii D. i and iii the problem is structurally incomplete. I f the question is like this none of A,B,C,D IS true. Because there is no obligation in the combination. so any combination is possible that will give 33 balls in total.

during a year a factory increased itsoutput twice by the same percent of x.in the beginning 600 articles were produced per month, finally 726 . 1) x% 2 ) 10% Solution: Tips: In this type of comparison questions try to start with the given data. So let 10% therefore, 600+10%of 600=660 second time, 660+10%of 660=726 so answer is 10% so C

if P,Q ,& R r integral multiples of 3,5,7 and P=R and PR 1) Q=P+49 2)Q=P-49 3)Q=P-3/7 4)P=Q-204 5) p=q-63 Solution: set P={3,6,9,12,15,18,21,..........} Q={5,10,15,20,25,30,35,............} R={7,14,21,28,35,42,47,............} Now its given that P=R so P=R={21,42,63,84,......} and PR so Q > 220.5 so Q should be 225 So the relationship is P=Q-204 so the answer is 4

The approximate value of ((61.16)(0.98)^2)/sqrt(401) is A. 5 B. 4 C. 3 D. 2 E. 1 the answer will be 3.©

Given A= {Set of odd integers less than 100} B= {Set of positive even integers less than 5} C= {Set which include product of both sets A and B} Col A: number of integers in set C Col B: 100 solution: I think it cant be determined because in the set A there are infinite numbers. so the answer will be D. Are u puzzled? plz write to me.

Given (s-t)^2 = 16 where t=2 Col A: s Col B: 6 solution: the answer will b D.

it will be 8c4-8c3=14 [mind it that no distinct point on a circle are on a straight line.]

it will be 5c3*(1/2)^3*(1/2)^2=5/16