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# if a != -b is (a-b)/a+b <1? 1.b^2 > a^2 2.b-a>1

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Senior Manager
Joined: 16 Jan 2009
Posts: 339
Concentration: Technology, Marketing
GMAT 1: 700 Q50 V34
GPA: 3
WE: Sales (Telecommunications)
if a != -b is (a-b)/a+b <1? 1.b^2 > a^2 2.b-a>1  [#permalink]

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01 Jun 2009, 07:35
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if a != -b is (a-b)/a+b a^2
2.b-a>1
[spoiler](1) is sufficient .
the absolute value of b is greater than the absolute value of a.
So (a-b)/a+b will always be negative.
(2) is not sufficient.
OA / IMO - A[/spoiler]

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Lahoosaher

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01 Jun 2009, 07:57
amolsk11 wrote:
if a != -b is (a-b)/a+b <1?
1.b^2 > a^2
2.b-a>1
[spoiler](1) is sufficient .
the absolute value of b is greater than the absolute value of a.
So (a-b)/a+b will always be negative.
(2) is not sufficient.
OA / IMO - A[/spoiler]

B for me.
question reduces to b/(a+b)>0?
Stmt 2 essentially says b>a. From a!=b and stmt 2, we can deduce that /a/</b/

WHat is the source? Seems a hard question.
Senior Manager
Joined: 16 Jan 2009
Posts: 339
Concentration: Technology, Marketing
GMAT 1: 700 Q50 V34
GPA: 3
WE: Sales (Telecommunications)

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01 Jun 2009, 13:41
OA -A

Click the spoiler.

--== 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.

_________________

Lahoosaher

Re: DS:Inequality &nbs [#permalink] 01 Jun 2009, 13:41
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