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# If x and y are positive integers, what is the value of x +

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Manager
Joined: 19 May 2008
Posts: 156
Location: Mumbai
If x and y are positive integers, what is the value of x +  [#permalink]

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Updated on: 31 Oct 2008, 07:05
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(N/A)

Question Stats:

100% (00:16) correct 0% (00:00) wrong based on 1 sessions

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If x and y are positive integers, what is the value of x + y?
(1) 2 raised to x * 3 raised to y = 72
(2) 2 raised to x * 2 raised to y = 32

Answer with explanation. I will provide OA shortly

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Originally posted by tharunv on 30 Oct 2008, 18:34.
Last edited by amitdgr on 31 Oct 2008, 07:05, edited 1 time in total.
corrected the typo
Senior Manager
Joined: 21 Apr 2008
Posts: 265
Location: Motortown
Re: DS: x and y  [#permalink]

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30 Oct 2008, 18:49
A

1. 2^x*3^y = 2^3*3^2
x = 3, y =2 - Suff

2. 2^(x+y) = 2^5
x+y =5 - Insuff
Manager
Joined: 19 May 2008
Posts: 156
Location: Mumbai
Re: DS: x and y  [#permalink]

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30 Oct 2008, 20:17
That's not the answer - but thank you for the explanation of the first sufficiency. The OA is D.
Manager
Joined: 09 Jul 2008
Posts: 107
Location: Dallas, TX
Schools: McCombs 2011
Re: DS: x and y  [#permalink]

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30 Oct 2008, 20:29
Can you pls explain why the answer is D ? I get A
VP
Joined: 17 Jun 2008
Posts: 1474
Re: DS: x and y  [#permalink]

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30 Oct 2008, 23:01
tharunv, can you please check if the question does not ask for the value of (x+y). In the present form of the question, answer should be A only.
Manager
Joined: 19 May 2008
Posts: 156
Location: Mumbai
Re: DS: x and y  [#permalink]

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31 Oct 2008, 03:52
Sorry guys - my mistake - it is "what is the value of x + y" - a typo on my part - hope this clarifies things...

--== 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: x and y &nbs [#permalink] 31 Oct 2008, 03:52
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