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The successor of a number X equals the predecessor of another number Y. If X = 45, what is Y?

Class 6Successor and PredecessorWhole Numbers
  • A94
  • B42
  • C52
  • D47

Step-by-Step Solution

Successor of X = 45 + 1 = 46. This equals predecessor of Y = Y - 1, so Y - 1 = 46, giving Y = 47.
Answer: D) 47

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