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each person at a party shook hands with everyone else exactly once there were 66 handshakes how many people were at the party
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each person at a party shook hands with everyone else exactly once there were 66 handshakes how many people were at the party

User Marva
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every person shook a hand once there were 66 handshakes so that means there were 11 people there


User Stanislau Baranouski
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