GRE Problem Solving Question 17

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Source: Kaplan

If x, y, and z are consecutive integers and x < y < z, which of the following must be true?

Indicate all possible choices.

  • A x+y is even.
  • B x+y+z is odd.
  • C y-z=1
  • D xyz is divisible by 3.
  • E x+y is odd.

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