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

It is currently 25 Oct 2014, 19:39

Close

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
Your Progress

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

Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.

Events & Promotions

Events & Promotions in June
Open Detailed Calendar

Is x > 0

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
2 KUDOS received
Director
Director
User avatar
Joined: 07 Jun 2004
Posts: 618
Location: PA
Followers: 3

Kudos [?]: 191 [2] , given: 22

Is x > 0 [#permalink] New post 24 Jan 2011, 05:42
2
This post received
KUDOS
1
This post was
BOOKMARKED
00:00
A
B
C
D
E

Difficulty:

  55% (hard)

Question Stats:

57% (01:31) correct 43% (00:48) wrong based on 35 sessions
Is x > 0

(1) x < x^2
(2) x^2 < x^3
[Reveal] Spoiler: OA

_________________

If the Q jogged your mind do Kudos me : )

Intern
Intern
User avatar
Joined: 13 Oct 2010
Posts: 21
Location: Milpitas, CA
Followers: 2

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

Re: One more Algebra DS [#permalink] New post 24 Jan 2011, 05:59
(1) If x = 2, then x^2 = 4; here x > 0
If x = -2, then x^2 = (-2)^2 = 4; here x < 0
x may or may not be greater than 0. Hence, there is no unique answer.
So, statement 1 is NOT SUFFICIENT.

(2) x^2 < x^3 implies that x > 1, which implies x is always positive. So, x > 0.
So, statement 2 is SUFFICIENT.

[Reveal] Spoiler:
The correct answer is B.

_________________

Anurag Mairal, Ph.D., MBA
GMAT Expert, Admissions and Career Guidance
Gurome, Inc.
1-800-566-4043 (USA)
+91-99201 32411 (India)
http://www.facebook.com/Gurome

Expert Post
1 KUDOS received
Math Expert
User avatar
Joined: 02 Sep 2009
Posts: 23422
Followers: 3618

Kudos [?]: 28978 [1] , given: 2874

Re: One more Algebra DS [#permalink] New post 24 Jan 2011, 06:37
1
This post received
KUDOS
Expert's post
Manager
Manager
User avatar
Joined: 19 Dec 2010
Posts: 145
Followers: 2

Kudos [?]: 19 [0], given: 12

Re: One more Algebra DS [#permalink] New post 17 Mar 2011, 21:56
Very easy. Question asks if x is positive ...fraction OR integer doesn't matter..
Statement 1 says that x is either a negative fraction OR a positive integer.
Statement 2 says that x is definitely a positive integer.
Hence B
SVP
SVP
avatar
Joined: 16 Nov 2010
Posts: 1691
Location: United States (IN)
Concentration: Strategy, Technology
Followers: 31

Kudos [?]: 299 [0], given: 36

Premium Member Reviews Badge
Re: One more Algebra DS [#permalink] New post 17 Mar 2011, 23:09
(1)

x-x^2 < 0

x(1-x) < 0

=> x > 1 or x < 0, so not sufficient

(2)
x^2 < x^3

=> x is +ve as if x is -ve then, then x^3 will be -ve while x^2 will be still +ve and +ve can't be < -ve

Answer B.
_________________

Formula of Life -> Achievement/Potential = k * Happiness (where k is a constant)

Get the best GMAT Prep Resources with GMAT Club Premium Membership

CEO
CEO
User avatar
Joined: 09 Sep 2013
Posts: 2871
Followers: 208

Kudos [?]: 43 [0], given: 0

Premium Member
Re: Is x > 0 [#permalink] New post 09 Oct 2014, 08:13
Hello from the GMAT Club BumpBot!

Thanks to another GMAT Club member, I have just discovered this valuable topic, yet it had no discussion for over a year. I am now bumping it up - doing my job. I think you may find it valuable (esp those replies with Kudos).

Want to see all other topics I dig out? Follow me (click follow button on profile). You will receive a summary of all topics I bump in your profile area as well as via email.
_________________

GMAT Books | GMAT Club Tests | Best Prices on GMAT Courses | GMAT Mobile App | Math Resources | Verbal Resources

Re: Is x > 0   [#permalink] 09 Oct 2014, 08:13
    Similar topics Author Replies Last post
Similar
Topics:
2 Experts publish their posts in the topic Is 5 > x > 0 ? GMATD11 9 28 Feb 2011, 23:18
6 Experts publish their posts in the topic Is x > 0 ? rxs0005 20 21 Sep 2010, 07:14
8 Experts publish their posts in the topic If x > 0, is x/y > x ? amitgovin 13 08 Oct 2009, 12:27
is x+y > 0? sandy007 6 22 Jan 2006, 22:14
4 Experts publish their posts in the topic Is x > 0? afife76 19 09 Nov 2004, 01:41
Display posts from previous: Sort by

Is x > 0

  Question banks Downloads My Bookmarks Reviews Important topics  


cron

GMAT Club MBA Forum Home| About| Privacy Policy| Terms and Conditions| GMAT Club Rules| Contact| Sitemap

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®.