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Q:

If a and b are odd numbers, then which of the following is even?

  • 1
    a + b + ab
  • 2
    a + b - 1
  • 3
    a + b + 1
  • 4
    a + b + 2ab
  • Show Answer
  • Workspace

Answer : 4. "a + b + 2ab "

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