SSC CGL (Prelims) General: Counting of Figures / Basic Reasoning questions with solutions

Q1. A group of 16 people sit in a circle. Each person shakes hands with exactly 2 neighbors. How many handshakes take place?

1. 24
2. 16
3. 32
4. 48

Answer: 16

There are 16 people, and each person shakes hands with 2 neighbors, giving 32 counted handshakes. Since each handshake is counted twice, the actual number is 16. So the answer is 16.