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  1. Answers
    19
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    243,533

    Re: Hand Shake Problem

    Hi,

    The answer would be 40.
    10 people --handshake.
    For a single hand shake, we need 2 hands. Totally there were 10 people
    So, 10C2= (10 * 9 )/(1 * 2)
    = 45
    But, No couple shake...
  2. Answers
    11
    Views
    14,650

    Re: Get 37 by using five five's

    Hi,

    (5*5)+(5!/(5+5))
    =25 + (5!/10)
    =25 + (120/10)
    =25 + 12
    =37

    Cheers,
    Sharme
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