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7 July, 04:59

8 people at a party they all exchange handshakes how many handshakes are exchanged. if 50 people were at this party how many handshakes would there be. if there were a hundred people. if there were. n people

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  1. 7 July, 06:21
    0
    For 8 people this would be the number of combinations of from 8

    = 8C2 = 8! / 6! 2!

    A quick way to do this is (8*7) / (2*1) = 28 answer

    For 50 people its (50*49) / 2 = 1225

    100 - its 100*99 / 2 = 4950.

    For n people its n! / (n - 2) ! 2!
  2. 7 July, 06:52
    0
    I think it would be 80 I I'm rong I try
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