Check GMAT Club Decision Tracker for the Latest School Decision Releases https://gmatclub.com/AppTrack

 It is currently 24 May 2017, 14:23

GMAT Club Daily Prep

Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.

Customized
for You

we will pick new questions that match your level based on your Timer History

Track

every week, we’ll send you an estimated GMAT score based on your performance

Practice
Pays

we will pick new questions that match your level based on your Timer History

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

M1 q19 error?

Author Message
Intern
Joined: 09 Nov 2009
Posts: 20
Followers: 1

Kudos [?]: 1 [0], given: 3

Show Tags

15 Nov 2009, 10:30
I think this is an error. If we plug in x < 1 and x >1 we get to different results if y =1. Stem does not state M is an interger. Am I off?
CIO
Joined: 02 Oct 2007
Posts: 1218
Followers: 97

Kudos [?]: 946 [0], given: 334

Show Tags

16 Nov 2009, 01:12
I'm sorry, I don't follow how you arrived to this conclusion. Where did you plug the values of $$X$$ in?
If we take S1, we get this:
$$\sqrt{X} \gt \sqrt{Y}$$
or
$$X \gt Y$$
after we square both sides. Why would you plug in $$X \lt 1$$ and $$Y =1$$ in there if it says that $$X \gt Y$$? S1 is sufficient to answer the question.
Let's see what we have with S2:
$$X^2 \gt Y^2$$
I see no reason to plug $$X \lt 1$$ and $$Y=1$$ in here... S2 is not sufficient since plugging in X=4, Y=2 and X=-4, Y=2 produce different results while not violating S2.

I hope this helps.

ajonas wrote:
I think this is an error. If we plug in x < 1 and x >1 we get to different results if y =1. Stem does not state M is an interger. Am I off?

_________________

Welcome to GMAT Club!

Want to solve GMAT questions on the go? GMAT Club iPhone app will help.
Result correlation between real GMAT and GMAT Club Tests
Are GMAT Club Test sets ordered in any way?

Take 15 free tests with questions from GMAT Club, Knewton, Manhattan GMAT, and Veritas.

GMAT Club Premium Membership - big benefits and savings

Re: M1 q19 error?   [#permalink] 16 Nov 2009, 01:12
Similar topics Replies Last post
Similar
Topics:
m02 q 19 1 26 Dec 2011, 21:22
m06 Q19 4 11 Feb 2012, 01:19
M25 Q19 3 16 Sep 2009, 17:33
30 M25 Q19 16 15 Jul 2013, 13:33
1 M01 Q19 23 20 Jul 2012, 14:57
Display posts from previous: Sort by

M1 q19 error?

Moderator: Bunuel

 Powered by phpBB © phpBB Group and phpBB SEO Kindly note that the GMAT® test is a registered trademark of the Graduate Management Admission Council®, and this site has neither been reviewed nor endorsed by GMAC®.