Question

During a party, a total of 78 handshakes occurred. If each person shook hands once with each of the other people, how many people were at the party

Answer 1

156

Explanation:

We know that a total of 78 handshakes took place and that each person that attended this party shook hands only once. To do a handshake, 2 people are needed, so we have multiply 78 by 2. The answer is 156 so therefore the people that attended the party were a total of 156.

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