If x and y are positive integers, what is the value of x?
(1) (3^x) (5^y) = 1,125.
(2) y = 3.
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(1) 1125 = 5^3 * 3^2
Therefore, (3^2) * (5^3) = 1125 implies x = 2
So, (1) is SUFFICIENT.
(2) y = 3 does not help us to find x as we don't know the relationship between x and y.
So, (2) is NOT SUFFICIENT.
[spoiler]The correct answer is (A).[/spoiler]
Therefore, (3^2) * (5^3) = 1125 implies x = 2
So, (1) is SUFFICIENT.
(2) y = 3 does not help us to find x as we don't know the relationship between x and y.
So, (2) is NOT SUFFICIENT.
[spoiler]The correct answer is (A).[/spoiler]
Rahul Lakhani
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Quant Expert
Gurome, Inc.
https://www.GuroMe.com
On MBA sabbatical (at ISB) for 2011-12 - will stay active as time permits
1-800-566-4043 (USA)
+91-99201 32411 (India)
