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Prove that total number of people who lived on earth and made odd number of handshakes is always even?
Wiki User
∙ 13y ago
If you multiply anything by 2 it always comes out even. So if people make 35 handshakes, we multiply it by 2 and we get 70 people. This will work with any different number of handshakes, odd or even.
Wiki User
∙ 13y ago
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