CAT Quant Practice Problems

Question: If x, y and z are real numbers, is z – x even or odd?

I. xyz is odd.

II. xy + yz + zx is even.

The question can be answered with the help of statement I alone
question can be answered with the help of statement II, alone
Both, statement I and statement II are needed to answer the question
The question cannot be answered even with the help of both the statements.
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CAT Quant Practice Problems
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