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If x and y are positive, is 3x > 7y? (1) x > y + 4 (2)

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Director
Joined: 01 Apr 2008
Posts: 827
Name: Ronak Amin
Schools: IIM Lucknow (IPMX) - Class of 2014
If x and y are positive, is 3x > 7y? (1) x > y + 4 (2) [#permalink]

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22 Mar 2009, 23:36
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If x and y are positive, is 3x > 7y?
(1) x > y + 4
(2) -5x < -14y
A. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient.
B. Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient.
C. BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is
sufficient.
D. EACH statement ALONE is sufficient.
E. Statements (1) and (2) TOGETHER are NOT sufficient.

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Director
Joined: 14 Aug 2007
Posts: 695

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23 Mar 2009, 01:21
B.
Attachment:

ineq.JPG [ 12.1 KiB | Viewed 1126 times ]
Director
Joined: 01 Apr 2008
Posts: 827
Name: Ronak Amin
Schools: IIM Lucknow (IPMX) - Class of 2014

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23 Mar 2009, 22:10
Hi alpha_plus_gamma,
how do u get the inclination of the slope in the graph??
I can plot the line but sometimes i go wrong with the inclination of the slope..

alpha_plus_gamma wrote:
B.
Attachment:
ineq.JPG

--== Message from GMAT Club Team ==--

This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

To review the GMAT Club's Forums Posting Guidelines, please follow these links: Quantitative | Verbal Please note - we may remove posts that do not follow our posting guidelines. Thank you.
Re: DS: Is 3x>7y   [#permalink] 23 Mar 2009, 22:10
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