It is currently 20 Nov 2017, 19:58

### 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

# Is x > y ?

Author Message
TAGS:

### Hide Tags

Intern
Joined: 16 Feb 2010
Posts: 28

Kudos [?]: 12 [1], given: 0

Is x > y ? [#permalink]

### Show Tags

01 May 2010, 07:25
1
KUDOS
2
This post was
BOOKMARKED
00:00

Difficulty:

55% (hard)

Question Stats:

48% (01:14) correct 52% (00:46) wrong based on 30 sessions

### HideShow timer Statistics

Is x > y ?

(1) x + y > 0
(2) x^2 – y^2 > 0
[Reveal] Spoiler: OA

Kudos [?]: 12 [1], given: 0

Senior Manager
Joined: 30 Aug 2009
Posts: 283

Kudos [?]: 191 [0], given: 5

Location: India
Concentration: General Management
Re: Is x > y ? [#permalink]

### Show Tags

01 May 2010, 09:02
poohv005 wrote:
Is x >y ?
(1) x + y > 0
(2) x^2–y^2> 0

stmnt1 - x= 2 y = 0 then x + y > 0 and x>y
x= 1 and y =2 then x + y > 0 and x<y hence insuff

stmnt2 - x= 2 and y = 0 then x^2–y^2> 0 and x>y
x= -5 and y = 4 then x^2–y^2> 0 but x<y hence insuff

taking both together we have x + y > 0 and x^2–y^2> 0
==> x^2–y^2> 0 = (x+y)(x-y) > 0
==> we have (x+y) is >0 so x-y>0 or x>y. hence C

Kudos [?]: 191 [0], given: 5

Non-Human User
Joined: 09 Sep 2013
Posts: 15614

Kudos [?]: 283 [0], given: 0

Re: Is x > y ? [#permalink]

### Show Tags

14 Sep 2016, 10:33
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.
_________________

Kudos [?]: 283 [0], given: 0

Re: Is x > y ?   [#permalink] 14 Sep 2016, 10:33
Display posts from previous: Sort by