Question

6 people gathered at a function and they shake hand each other.Then how many shakes hands are possible if repetition is not allowed?​

Answer 1

Answer:

30 handshakes

Step-by-step explanation:

1 person shakes 5 other people.

There are 6 people.

So,

Number of handshakes = 6 X 5

                                       = 30

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Answer 2

Step-by-step explanation:

the 1st person will shake to the other 5

the 2nd person will shake with other 4 (except 1st)

just in that manner

the total hand shakes will be 15

Below is the way that I calculated:-

5+4+3+2+1 = 15