# official cat 2018 by IIMs (Quant)

13 Posts  ·  143 Users

Page 1 of 2 Approach  Write a comment
Write a comment... Approach? 1 comment @kumar_ami8  ·  0 karma

factors of 10800 = 2^4 x 3^3 x 5^2     factors of 30 = 2x3x5 , there are 24 factors which is multiple of 30. if 30 is multiplied by 3, it will make it divisible by 90 also so to find out multiple of 30 only 3 has to be removed. so (2x3x5)(2^3 x 5^1) so total nubmer of foactors which is multiple of 30 but not 90 is (3+1 *1+1) = 8 Write a comment
Write a comment... In how many ways can 4 parrots be put in 4 cages, each meant for a particular parrot, such that none of the parrot goes in it's own cage? @karancool93IIM Calcutta  ·  865 karma

9 ways? @yk99  ·  57 karma

9 ways Write a comment
Write a comment... Explain with steps 1 comment @karancool93IIM Calcutta  ·  865 karma

A?? Write a comment
Write a comment... Plz give me the details solution Thank you!!  @amar-rajput  ·  539 karma

5pi @karancool93IIM Calcutta  ·  865 karma

@amar-rajput damn, yes, its 5pi......

forgot to divide by 4 Write a comment
Write a comment... Explain  @akashsateesh  ·  34 karma

40 @karancool93IIM Calcutta  ·  865 karma

yup, 40 Write a comment
Write a comment... If l, m and n are three integers and x denotes sum of squares of l, m and n and y denotes sum of squares of reciprocals of l, m and n. If p denotes the smallest value of xy, find the value of p

7
8
9
None of the above In q. 7 i took proportion to be 3 : 6 :: 1 : 2. I am not getting the correct answer can any one tell me where i am going wrong ? Thanks in advance :) 1 comment @karancool93IIM Calcutta  ·  865 karma Write a comment
Write a comment... If |x-4| + |y-4| = 4 ,then how many integer values can set (x,y) have?

Infinite
5
16
9  