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GMAT prep - n between 2 & 100

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jkelk Just gettin' started! Default Avatar
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GMAT prep - n between 2 & 100 Post Wed Mar 14, 2012 3:34 am
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  • Lap #[LAPCOUNT] ([LAPTIME])
    Hi

    Please help answer the attached ques
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    Post Wed Mar 14, 2012 5:06 am
    jkelk wrote:
    Hi

    Please help answer the attached ques
    Square of n between 2 and 100 are: 1, 4, 9, 16, 25, 26, 49, 64, 81

    (1) n is even implies there can be many possible answers.
    No definite answer; NOT sufficient.


    (2) Cube root of n is an integer.
    Also n is the square of an integer.
    Only 64 has a cube root of 4 (present in the list above), no other integer's cube root is present in the above list; SUFFICIENT.

    The correct answer is B.

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