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15 handshakes each person shook hands exactly once. how many people are at the party?

15 handshakes each person shook hands exactly once. how many people are at the party?
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3 votes
15 handshakes each person shook hands exactly once. how many people are at the party?

User Corey P
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1 Answer

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the answer to this question would be 30
User Bater Chen
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