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761 - Math - Problem Solving

Math - Problem Solving MCQ No. : 28237

Question: Let x, y and z be distinct integers. x and y are odd and positive, and z is even and positive. Which one of the following statements cannot be true?

  1. (x-z)2y is even
  2. (x-z)y2 is odd
  3. (x-z)y is odd
  4. (x-y)2z is even

Correct Answer: A

Explanation:

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