BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

DS 19

This topic has expert replies
Post new topic Post Reply
Previous Topic Next Topic
Master | Next Rank: 500 Posts
Posts: 269
Joined: Sun Apr 01, 2007 5:41 am

DS 19

by dunkin77 » Thu May 31, 2007 4:42 am
Hi,

The answer is B but why not 1)? if n^2 is integer, I thought n also must be an integer.... Can anyone explain why 1) is insuf?







PS .... I thought I posted the same question before but could not search it...so sorry if I duplicate the question...
Attachments
19.JPG
Top
Source: — Data Sufficiency |
Master | Next Rank: 500 Posts
Posts: 105
Joined: Mon Sep 18, 2006 12:34 pm
Location: OH
Thanked: 7 times
GMAT Score:780

by mschling52 » Thu May 31, 2007 5:13 am
If n is a number such as sqrt(3), then n^2 = 3, but n is not an integer, n = 1.73205...
Top
Master | Next Rank: 500 Posts
Posts: 269
Joined: Sun Apr 01, 2007 5:41 am

by dunkin77 » Thu May 31, 2007 5:26 am
Indeed - yes. thankyou!
Top
Post new topic Post Reply
• Page 1 of 1