Find all School-related info fast with the new School-Specific MBA Forum

 It is currently 10 Feb 2016, 06:14

### 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

# M15 #35

Author Message
Forum Moderator
Status: mission completed!
Joined: 02 Jul 2009
Posts: 1426
GPA: 3.77
Followers: 176

Kudos [?]: 709 [2] , given: 620

M15 #35 [#permalink]  06 Nov 2010, 01:13
2
KUDOS
Hi guys:
It seems that explanation of both 1) and 2) are not so good.

in equation x^2Y^3=200 we can find that $$(5^2)*(2^3)=200$$ - here is the point that x may be 5 or -5. Unless we can decide it, we can not solve the DS problem.
Y is positive since 200 is positive.

1) we are given that y is an integer- tells us nothing,
x*y=-10 or X*y=10 - not sufficient

2) $$x/y=2.5$$ - tells that either both x and y are positive or negative. We know that y is positive so x - must be positive, thus we can find the value of x*y.
_________________

Audaces fortuna juvat!

GMAT Club Premium Membership - big benefits and savings

CIO
Joined: 02 Oct 2007
Posts: 1218
Followers: 94

Kudos [?]: 826 [0], given: 334

Re: M15 #35 [#permalink]  08 Nov 2010, 01:04
Thank you! +1. I'll look into it.
_________________

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: M15 #35   [#permalink] 08 Nov 2010, 01:04
Similar topics Replies Last post
Similar
Topics:
M15 Q 35 - DS 1 19 Jul 2009, 23:50
DS:m 15 #29 1 20 Jun 2009, 10:59
4 m15,#10 18 28 Nov 2008, 01:10
12 M15#18 22 19 Nov 2008, 18:24
6 M15 #3 26 22 Oct 2008, 12:23
Display posts from previous: Sort by

# M15 #35

Moderators: Bunuel, WoundedTiger

 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®.