Search Questions

Two white squares and a black square have to be chosen from a chess board such that no two of them are in the same row or column. In how many ways can the selection be made?
a) 6912
b) 6712
c) 6942

pls explain.....

Find the remainder when 12^107 is divided by 37? a)34 b)36 c)11 d)3
pls explain method u use to solve this...

Hi, This question is from cracku practice problem.

11433 and 13721 are divided by a certain number and the remainder is same in both cases then find the number of possible divisors?

Solution is ---

Required number of divisors are divisors of 13721 – 11433 = 2288 = 16*11*13
No. of divisors of 16*11*13 = (4+1)(1+1)(1+1)/2 = 10.

I am not getting why after calculating no of factors it is divided by 2. Should not the answer be 20?

cxcxcxc

A positive whole number M less than 100 is represented in base 2 notation, base 3 notation, and base 5 notation. It is found that in all three cases the last digit is 1, while in exactly two out of the three cases the leading digit is 1. Then M equals

i am facing a lot of problem with verbal section. I try solving RCs and para jumbles but most of them come out to be wrong. i tried to analyze this problem and came up with certain things which are making it difficult for me- i loose concentration while reading with rc passages, this happens with me while solving para jumbles as well.. please suggest some ways to overcome this. Thanks in Advance! :)

From a pack of 52 playing cards three cards are drawn at random. Find the probability of drawing a king , a queen and a jack?

(a)6/5525 (b)1/13^3 (c)1/14^3 (d)1/15^3

Remainder[( 77^99)/101]=?

How many five digit even natural numbers have exactly two 5s?

while doing RCs in CAT i attempt 3 RCs in which i manage 10 questions and 7-8 correct, is it correct or need to improve??