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

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This is in the quant book, 1. n is even, n is square of an [#permalink] New post 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
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 [#permalink] New post 22 Mar 2006, 12:53
Because 8 is not the square of an integer.

The only possibility is 64, because it is 8 squared, and 4 cubed.
  [#permalink] 22 Mar 2006, 12:53
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This is in the quant book, 1. n is even, n is square of an

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