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there are 15 people in a party. each shake hands with each other. what is the total number of handshakes?
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there are 15 people in a party. each shake hands with each other. what is the total number of handshakes?

User Matthew Schuchard
by
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1 Answer

3 votes

Explanation:

15 people must shake hands with 14 other people

15 x 14 = 210

BUT each handshake involves TWO people....so divide by '2'

= 105 handshakes

User Matt Mangold
by
7.5k points
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