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Largest possible value of x

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by gmatblood » Thu Nov 03, 2011 11:19 am
nidhis.1408 wrote:If X is a positive integer and (405) 4 is a multiple of 3X, what is the largest possible value of X?
(a) 5. (b) 12. (c) 16. (d) 20. (e) 26.
Is the question correct?
Any powers missing!!?
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by nidhis.1408 » Thu Nov 03, 2011 11:26 am
sorry i wrote it wrong. Its 405^5
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by nidhis.1408 » Thu Nov 03, 2011 11:26 am
405^4 :)
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by gmatblood » Thu Nov 03, 2011 11:29 am
nidhis.1408 wrote:405^4 :)
Is 3X correct?
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by nidhis.1408 » Thu Nov 03, 2011 11:41 am
its also to the power 3^x
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by shankar.ashwin » Thu Nov 03, 2011 11:49 am
405^4 = (3^4 * 5) ^ 4 = 3^16 * 5^4. C IMO
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