Need Some Help Please

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Need Some Help Please

If 6 people shake hands with each other how many handshakes will there be?

April 14, 2009, 9:41 pm by Ccanton66

there are 6 people, each person with shake hands with five persons. so what you have is
6X5 which is 30 so there will be 30 handshakes

April 19, 2009, 3:22 pm by Wmarnic29

If the handshakes are unique and they never repeat , then it is the summation of 1+2+...+5, since the unique handshakes decreases everytime. Hence, the answer is 15.

April 27, 2009, 3:59 pm by Guest

suppose 1 peson out of 6 will shake hand with 5 people, then take that person away, now again suppose 1 peson out of 5, he will shake hand with 4 people, then again take this peson away, now we are left 4 people, hence we will carry on with this. Finally, the possible no. of hand shakes will be
                                              5 + 4 + 3 + 2 +1 = 15.

May 1, 2009, 8:50 am by Zubi9999

72
6*2=12
12*6=72

May 13, 2009, 9:32 am by Ebateman16

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