Chapter PS, Problem 6.5P

To determine

To find: The number of handshakes take place.

Answer to Problem 6.5P

The number of handshakes take place is $21$ .

Explanation of Solution

Given information:

The total number of person in the meeting is $7$ .

The number of handshakes take place is calculated as,

  $\begin{array}{c}t=\frac{n\left(n-1\right)}{2}\\ =\frac{\left(7\right)\left(7-1\right)}{2}\\ =21\end{array}$

Thus, the number of handshakes take place is $21$ .