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# Is XY>0? Stmt 1: (x-y)^2 = 8 Stmt 2: (x-y)^2 = 10 Any

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Intern
Joined: 06 Jul 2006
Posts: 23

Kudos [?]: 7 [0], given: 0

Is XY>0? Stmt 1: (x-y)^2 = 8 Stmt 2: (x-y)^2 = 10 Any [#permalink]

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18 Jul 2006, 11:36
This topic is locked. If you want to discuss this question please re-post it in the respective forum.

Is XY>0?

Stmt 1: (x-y)^2 = 8

Stmt 2: (x-y)^2 = 10

Any ideas on how to solve this? Thanks for your help!

Kudos [?]: 7 [0], given: 0

Senior Manager
Joined: 07 Jul 2005
Posts: 399

Kudos [?]: 14 [0], given: 0

Location: Sunnyvale, CA
Re: Is XY>0 [#permalink]

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18 Jul 2006, 11:48
Dallas Jockey wrote:
Is XY>0?

Stmt 1: (x-y)^2 = 8

Stmt 2: (x-y)^2 = 10

Any ideas on how to solve this? Thanks for your help!

Is one of them (x+y)^2 ??

Kudos [?]: 14 [0], given: 0

Intern
Joined: 06 Jul 2006
Posts: 23

Kudos [?]: 7 [0], given: 0

Re: Is XY>0 [#permalink]

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18 Jul 2006, 14:45
No, both are (x-y)^2. This is from a reputed online GMAT test, so i doubt if the question is incorrect......I can't rule out their typos though...

[quote="sgrover"][quote="Dallas Jockey"]Is XY>0?

Stmt 1: (x-y)^2 = 8

Stmt 2: (x-y)^2 = 10

Any ideas on how to solve this? Thanks for your help![/quote]
Is one of them (x+y)^2 ??[/quote]

Kudos [?]: 7 [0], given: 0

Director
Joined: 06 May 2006
Posts: 790

Kudos [?]: 40 [0], given: 2

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18 Jul 2006, 14:52
Hmm... so we can rule out C at the outset.

A and B can be ruled out, IMO, they do not give us any info. And by extension, D as well.

Remaining is E.
_________________

Uh uh. I know what you're thinking. "Is the answer A, B, C, D or E?" Well to tell you the truth in all this excitement I kinda lost track myself. But you've gotta ask yourself one question: "Do I feel lucky?" Well, do ya, punk?

Kudos [?]: 40 [0], given: 2

Manager
Joined: 11 Jan 2006
Posts: 230

Kudos [?]: 18 [0], given: 18

Location: Arkansas, US
WE 1: 2.5 yrs in manufacturing

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18 Jul 2006, 18:44
Yea luks E is the only choice, where I can seek shelter.

Wats the OA

Kudos [?]: 18 [0], given: 18

Director
Joined: 26 Sep 2005
Posts: 567

Kudos [?]: 25 [0], given: 0

Location: Munich,Germany

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18 Jul 2006, 18:55
same here I get E.

however, I fail to understand how both can be (x+y)^2

Kudos [?]: 25 [0], given: 0

GMAT Club Legend
Joined: 07 Jul 2004
Posts: 5032

Kudos [?]: 452 [0], given: 0

Location: Singapore

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18 Jul 2006, 19:04
St1:

(x-y)^2 = 8
(x-y) = +/- sqrt(8)

Can be x positive and y negative, or x negative and y negative. Insufficient.

St2:
(x-y)^2 = 10

Same thing as St1.

Impossible to use both St1 and St2 since they (x-y)^2 actually ended up with two values.

I'm going with E. But I have to say this question is definitely incorrect. To my knowledge, GMAT DS stems do not have conflicting statements.

Kudos [?]: 452 [0], given: 0

VP
Joined: 07 Nov 2005
Posts: 1115

Kudos [?]: 53 [0], given: 1

Location: India

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18 Jul 2006, 22:03
The only plausible solution seems to be E.

Kudos [?]: 53 [0], given: 1

18 Jul 2006, 22:03
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# Is XY>0? Stmt 1: (x-y)^2 = 8 Stmt 2: (x-y)^2 = 10 Any

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