Question

There are 6 people in a room. Each person shakes hands once. How many handshakes will there be?

A. 10
B. 15
C. 21
D. 29

Answer 1

b

Explanation:

Answer 2

B

Explanation:

You have already asked this type of question. so now you know how to do this.

6 persons means he shook his hand with 5 people.

like wise add all handshakes

5+4+3+2+1= 15 handshakes