Correct Answer - Option 2 : 28
According to the given information,
The number of people present is n = 8.
The number of handshakes exchanged is,
n(n - 1) ÷ 2
= 8(8 - 1) ÷ 2
= 8(7) ÷ 2
= 8 × 7 ÷ 2
= 15 × 3.5
= 28
Here, number of handshakes exchanged is 28.
Hence, the correct answer is "28".
To find the number of solutions of two consecutive integers we can use the formula n(n - 1) ÷ 2, where n is an integer.
