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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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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?

User Foxesque
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1 Answer

6 votes
All of them!
1+15=16
3+13=16
5+11=16
7+9= 16
User Javiazo
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8.6k points
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