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Five couples were at a party. If each person shook hands exactly once with everyone else except his/her spouse, how many handshakes were exchanged? (Note: One obviously doesn't shake hands with oneself.)

 Jan 26, 2021

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 #1
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Ten people at the party and each mus shake hands with eight other people   BUT each hand shake involves two people

     10   *       8     / 2 = 40 handshakes should cover it.

 Jan 26, 2021
 #1
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+3
Best Answer

Ten people at the party and each mus shake hands with eight other people   BUT each hand shake involves two people

     10   *       8     / 2 = 40 handshakes should cover it.

Guest Jan 26, 2021
 #2
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Thanks!

Leafie  Jan 26, 2021

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