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Puzzle-30

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12 members were present at a board meeting. Each member shook hands with all of the other members before & after the meeting. How many handshakes were there?

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7 Comments

  1. archana
    archana on May 30, 2013 at 8:42 am

    132

    Reply
  2. Anusha
    Anusha on May 27, 2013 at 3:14 pm

    12*11=132 handshakes totally

    Reply
  3. Abhimanyu
    Abhimanyu on May 26, 2013 at 2:48 am

    2(12C2)= 132

    Reply
  4. dhruv
    dhruv on May 25, 2013 at 2:10 pm

    12 ppl….. mutual hand shake……12c2….this happens twice…………..2*(12!/(10!*2!))=2*66=132

    Reply
  5. NISHANT SINGH
    NISHANT SINGH on May 25, 2013 at 11:48 am

    132 handshakes

    Reply
  6. uyim
    uyim on May 24, 2013 at 1:31 pm

    156

    Reply
  7. shivnandan
    shivnandan on May 24, 2013 at 12:43 pm

    132..

    Reply

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