GMAT Prep - Quant 3

This topic has expert replies
Source: — Data Sufficiency |

Legendary Member
Posts: 876
Joined: Thu Apr 10, 2008 8:14 am
Thanked: 13 times

by ketkoag » Sun Apr 05, 2009 5:07 am
here in this question, its given that n is an integer and n is between 2 and 100. Also n is the square of an integer.
Now statement 1 => n is even therefore n could be 4, 16, 36, 64.
Not sufficient.
Take statement 2 => n=64 . n is square of 8 and its cube root is 4. This is the only value that satisfy the conditions and thus is unique. Hence sufficient.
B is the correct answer.
Hope this helps!!

Senior | Next Rank: 100 Posts
Posts: 30
Joined: Thu Mar 22, 2007 8:53 pm
Thanked: 1 times

by Sumit69 » Sun Apr 05, 2009 5:27 am
Hi Ketkoag,
Thanks for the reply. The solution is fine , with the condition that cube of n is also between 2-100. This is not stated in question or 2 statement, therrfore i got a wrong reply.

Pl clarify.

sumit