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# If r s = rs + r + s, then for what value of s is r s equal

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Manager
Joined: 02 Sep 2008
Posts: 102
If r s = rs + r + s, then for what value of s is r s equal [#permalink]

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05 Apr 2009, 04:28
00:00

Difficulty:

(N/A)

Question Stats:

100% (00:00) correct 0% (00:00) wrong based on 4 sessions

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15. If r☉s = rs + r + s, then for what value of s is r ☉s equal to r for all values of r?
(A) –1 (B) 0 (C) 1
(D) 1/(r+1) (E) r

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Director
Joined: 04 Jan 2008
Posts: 823

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05 Apr 2009, 10:39
Clearly (B)
will appreciate if you can Post the OAs after 2-3 responses
thanks
milind1979 wrote:
15. If r☉s = rs + r + s, then for what value of s is r ☉s equal to r for all values of r?
(A) –1 (B) 0 (C) 1
(D) 1/(r+1) (E) r

--== 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.

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Re: R+S....   [#permalink] 05 Apr 2009, 10:39
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