Is x an even integer?
(1) x is the square of an integer.
(2) x is the cube of an integer.
[spoiler]OA=E[/spoiler]
For me, this is a tough and tricky question. I am not so good with number properties. Might someone help me? Thanks.
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Is x an even integer?
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Gmat_mission
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Statement 1 indicates that x is a perfect square:Gmat_mission wrote:Is x an even integer?
(1) x is the square of an integer.
(2) x is the cube of an integer.
1, 4, 9, 16, 25, 36, 49, 64...
Statement 2 indicates that x is a perfect cube:
1, 8, 27, 64...
When the statements are combined, x must be equal to a value contained in both lists.
Thus:
It's possible that x=1.
It's possible that x=64.
Since the answer to the question stem is NO in the first case but YES in the second case, the two statements combined are INSUFFICIENT.
The correct answer is E.
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I have worked with students based in the US, Australia, Taiwan, China, Tajikistan, Kuwait, Saudi Arabia -- a long list of countries.
My students have been admitted to HBS, CBS, Tuck, Yale, Stern, Fuqua -- a long list of top programs.
As a tutor, I don't simply teach you how I would approach problems.
I unlock the best way for YOU to solve problems.
For more information, please email me (Mitch Hunt) at [email protected].
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