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A group of 12 people attend a meeting. Every pair of people shook hands with each other. How many handshakes were there?

A group of 12 people attend a meeting. Every pair of people shook hands with each other. How many handshakes were there?
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2 votes
A group of 12 people attend a meeting. Every pair of people shook hands with each other. How many handshakes were there?

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User Mistahenry
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2 Answers

5 votes
There are 12 people handshakes
answered
User Quentin Engles
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8.1k points
4 votes
The first person will shake the hand whit the other 11 people, the second with 10 because he has already shook his hand with the first, and so on.
So there will be 11+10+9+8+7+6+5+4+3+2+1=66 handshakes.

Hope this helped!
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User Beeholder
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