If x is a positive integer, is x x an integer? (1) 4x is an integer. (2) 3x is not an integer.

If x is a positive integer, is x x an integer? (1) 4x is ...

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DS · Data Sufficiency

505-555

Algebra

x

is a positive integer, is

x \sqrt{x}

an integer?

(1)

\sqrt{4x}

is an integer.
(2)

\sqrt{3x}

is not an integer.

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Difficulty

505-555

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