User Forum

Subject :NSO    Class : Class 3

There are 5 people in a room. Each people shook hands with each of the other only once. Find the total number of handshakes took place.

A 5
B 10
C 15
D 20


i can not solve this question .please help

Ans 1:

Class : Class 4

Ans 2:

Class : Class 3
It should be 10

Ans 3:

Class : Class 3
How

Ans 4:

Class : Class 3

Ans 5:

Class : Class 6

Ans 6:

Class : Class 5

Post Your Answer