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How many different positive integers can be represented as a difference of two distinct members of the set \(\{1, 2, 3, \ldots, 14, 15, 16 \}? \)

 Jul 17, 2020
 #1
avatar+21953 
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When subtracting two different numbers from that set, you can get every positive answer from 1 through 15.

 Jul 17, 2020

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