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# This is in the quant book, 1. n is even, n is square of an

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Intern
Joined: 25 Feb 2006
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This is in the quant book, 1. n is even, n is square of an [#permalink]  22 Mar 2006, 12:41
This is in the quant book,

1. n is even, n is square of an integer and cube root of n is also an integer.

N is between 2 and 100

What is n?

The answer they gave is 64

Why can't it be 8.

thanks
Manager
Joined: 09 Feb 2006
Posts: 129
Location: New York, NY
Followers: 1

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Because 8 is not the square of an integer.

The only possibility is 64, because it is 8 squared, and 4 cubed.
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