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If m is a positive integer

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by ektamatta » Sun May 25, 2008 2:33 pm
If m is a positive integer, does there exist a positive integer k so that mk = 2m?
(1) m > 2
(2) mk > 2k
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Source: — Data Sufficiency |
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by aatech » Sun May 25, 2008 6:19 pm
This question looks very different... What's the source of this question...

Are you sure this is m*k or is it m^k???


In any case, I will go with D if it is m*k

Q wants to evaluate mk=2k

Stmt 1 m>2... for any value of m, k=2 will always satisfy the condtion... so SUFF

Stmt 2 mk > 2k means m>2..... same as stmt 1.. SUFF

OA?
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by ajmoney09 » Sun May 25, 2008 8:26 pm
I'm going to have to go with C.

because,

M > 2

If M is 4, and k is a positive integer (2) then 4(2) = 2(4) which is 8 = 8

Same if you made m = 6....... 6(2) = 2(6) = 12 = 12

Then Part two ensures that K doesn't become a high positive integer keeping it at 2....

If not C then E.......

Sorry I am torn between these two answers and I just started GMATs and have yet to get a grasp of the strategies to this Data Sufficiency problems...

Whats the correct answer and why?
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