# CAT Quant Practice Problems

Question: Given odd positive integers x, y and z, which of the following is not necessarily true?

 ${x^2}{y^2}{z^2}$ is odd $3\left( {{x^2} + {y^3}} \right){z^2}$ is even. $5x + y + {z^4}$ is odd ${z^2}\left( {\frac{{{x^2} + {y^2}}}{2}} \right)$ is even

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CAT Quant Practice Problems