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At the end of a game, each of the five members of a basketball team shake hands with each of the five members of the other team, and all of the players shake hands with the two referees. How many handshakes occur?

 Oct 27, 2021
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each of the five people shake hands with 5 others. The shakes here are 25. The ten players each shake hands twice. 10 * 2 = 20. 20 + 25 = 45.

 Oct 27, 2021

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