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

It is currently 18 Apr 2014, 03:27

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^4+y^4)>z^4? 1) x^2 + y^2 > z^2 2) x+y>z

  Question banks Downloads My Bookmarks Reviews Important topics  
Author Message
TAGS:
Intern
Intern
Joined: 11 Sep 2006
Posts: 45
Followers: 0

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

Is (x^4+y^4)>z^4? 1) x^2 + y^2 > z^2 2) x+y>z [#permalink] New post 03 Nov 2006, 23:19
Is (x^4+y^4)>z^4?

1) x^2 + y^2 > z^2
2) x+y>z
Intern
Intern
Joined: 17 Sep 2006
Posts: 47
Followers: 0

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

GMAT Tests User
 [#permalink] New post 03 Nov 2006, 23:57
Tricky question,

but I would go for E.

S2 clearly insufficient as z coult be negative.

S1 is difficult, but it's insufficient too. For example, what if it's 0.5+0.5>0.9. If we square each of them (to get ^4), we get 0.25+0.25>0.81, which is false. But if we would have 25+9>4, the statement would be true.

We don't do anything with S1+S2, E it is.
  [#permalink] 03 Nov 2006, 23:57
    Similar topics Author Replies Last post
Similar
Topics:
New posts Is x^4 + y^4 > z^4? 1) x^2 + y^2 >z^2 2) x +y >z jjhko 7 02 Sep 2006, 17:46
New posts is x^4+y^4>z^4 1.x^2+y^2>z^ 2 2.x+y>z ajisha 2 30 May 2007, 16:01
New posts Is x^4+y^4 > z^4? 1) x^2+y^2 > Z^2 2) x+y > z gmat blows 2 22 Jun 2008, 11:50
Popular new posts Is x^4 + y^4 ?z^4? 1) x^2+y^2 2) x+y >z MamtaKrishnia 12 15 Jul 2008, 08:40
New posts 3 x^4 + y^4 > z^4? (1) x^2 + y^2 > z^2 (2) x+y > z oziozzie 3 23 Sep 2008, 09:05
Display posts from previous: Sort by

Is (x^4+y^4)>z^4? 1) x^2 + y^2 > z^2 2) x+y>z

  Question banks Downloads My Bookmarks Reviews Important topics  


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®.