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# If x and y are integers and x > 0, is y > 0? (1) 7x 2y

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VP
Joined: 03 Apr 2007
Posts: 1376
Followers: 3

Kudos [?]: 271 [0], given: 10

If x and y are integers and x > 0, is y > 0? (1) 7x 2y [#permalink]  10 Jul 2008, 22:46
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Question Stats:

0% (00:00) correct 0% (00:00) wrong based on 0 sessions
If x and y are integers and x > 0, is y > 0?
(1) 7x – 2y > 0
(2) -y < x
Director
Joined: 27 May 2008
Posts: 550
Followers: 7

Kudos [?]: 215 [0], given: 0

Re: DS-x,y [#permalink]  11 Jul 2008, 00:49
E.

Draw a xy co-ordinate system.

select the area x > 0 ...

statement 1 : all the area lright of line y = 7/2 x .... Not suff

statement 2 : all the area right of line y = -x .... Not suff

Combine : still not suff....
Current Student
Joined: 04 Jan 2005
Posts: 283
Location: Milan
Schools: Wharton, LBS, UChicago, Kellogg MMM (Donald Jacobs Scholarship), Stanford, HBS
Followers: 7

Kudos [?]: 138 [0], given: 3

Re: DS-x,y [#permalink]  11 Jul 2008, 04:09
durgesh79,

I can see you are very good and fast at quant with your "cartesian" approach. Can you suggest some resources on how to apply it?
Director
Joined: 27 May 2008
Posts: 550
Followers: 7

Kudos [?]: 215 [0], given: 0

Re: DS-x,y [#permalink]  11 Jul 2008, 05:46
durgesh79,

I can see you are very good and fast at quant with your "cartesian" approach. Can you suggest some resources on how to apply it?

Thanks for your words... but I'm sorry i cant help you with any specific resources (books or sites)....
whenever you see two variables and inequalities, this could be one approach....
Manager
Joined: 04 Apr 2008
Posts: 228
Location: Pune
Followers: 2

Kudos [?]: 22 [0], given: 3

Re: DS-x,y [#permalink]  11 Jul 2008, 05:58
This is a Yes or No tpe of Question....So from the question stem we can expect that n the answers choices some relation between X and Y should be present.
from satement 1 we get 7x>2y so y can take values form 3 to - infinity insuff
from statement 2 we get that y>-x so it can have values from 0,1,......,infinity so insuff

combining aslso no result so E

goalsnr wrote:
If x and y are integers and x > 0, is y > 0?
(1) 7x – 2y > 0
(2) -y < x

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Every Problem Has a Sloution So keep working
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Re: DS-x,y   [#permalink] 11 Jul 2008, 05:58
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