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24 December, 01:43

How many numbers must be selected from the set

{1, 3, 5, 7, 9, 11, 13, 15} to guarantee that at least one pair

of these numbers add up to 16?

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Answers (1)
  1. 24 December, 02:43
    0
    There are 4 pair of numbers that add up to 16. So you would need to choose at least 5 numbers to ensure that you got at least one of those pairs.
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