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1. Every person at a party of twenty-eight people said hello to each of the other people at the party exactly once. How many "hello's" were said at the party?
asked
Dec 17, 2021
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1. Every person at a party of twenty-eight people said hello to each of the other people at
the party exactly once. How many "hello's" were said at the party?
Mathematics
high-school
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Answer:
56
Explanation:
28 people to 28 hellos
LucasKarlsson
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Dec 21, 2021
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LucasKarlsson
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