Question

Tutorial Exercise
An insurance agent has a list of 7 prospects and decides to telephone 2 of the prospects today and the other 5
prospects tomorrow. In how many different ways can the agent telephone the prospects?

Answer 1

Answer:

The agent can telephone the prospects in 240 different ways.

Step-by-step explanation:

Number of arrangements:

The number of different arrangements of n elements is given by:

$A_{n} = n!$

In this question:

On the first day, 2 prospects will be called, and the total number of possibilites is 2!.

On the second day, the remaining 5 prospects will be called, and the total number of possibilities will be 5!. So

$T = A_{2}*A_5 = 2!*5! = 2*120 = 240$

The agent can telephone the prospects in 240 different ways.