Aptitude Overflow
+3 votes
112 views

Find the smallest number y such that y x 162 (y multiplied by 162) is a perfect cube.

A

24

B

27

C

32

D

36
asked in Quantitative Aptitude by (542 points) 4 20
retagged by | 112 views
Thank you sir

2 Answers

+1 vote
Best answer
y * 162 = y * 3 * 3 * 3 * 3 * 2

So for perfect cube we need to add two 3s and two 2s.

so answer is = 3*3*2*2= 36.
answered by (542 points) 4 20
0 votes
Option D because 162 = 6 * 27 = there is cube of 27 which is 3 but not cube for 6 so two 6 must be multiplied hence 36
answered by (38 points)

Related questions

+1 vote
1 answer
3
2,807 questions
1,131 answers
418 comments
31,483 users