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Source: GWD

Level: 3

The numbers x and y are three-digit positive integers, and x + y is a four-digit integer. The tens digit of x equals 7 and the tens digit of y equals 5. If x < y, which of the following must be true?

I.The units digit of x + y is greater than the units digit of either x or y.

II.The tens digit of x + y equals 2.

III.The hundreds digit of y is at least 5.

  • A II only
  • B III only
  • C I and II
  • D I and III
  • E II and III

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