Question

In a party of 25 people each shakes hands with the others. Number of handshakes took place in the party is

• A. 325
• B. 300
• C. 600
• D. 630

Answer 1

Answer: (B)

300

Answer 2

A shakehand is done between two persons, number of ways of selecting two persons from 25 persons

= $25C_{2} = \frac{600}{2} = 300$