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Mathematics, 16.02.2020 07:40 alicia186

C+6. * At a party 28 handshakes were
exchanged. Each person shook hands
exactly once with each of the others.
How many people were at the party?

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Answers: 2

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C+6. * At a party 28 handshakes were
exchanged. Each person shook hands
exactly once wit...
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