Answer and Explanation:
The computation is shown below;
1. The willing amount to pay for the promise should be less than $20 that represents the time value of money
2. Now the present value is
= Received amount × discounting factor at 6% for 3 years
= $1,000 × 0.839
= $839
3. Now the interest rate is
As we know that
Future value = Present value × (1 + rate of interest)^number of years
$1,000 = $863.84 × (1 + rate of interest)^3
rate of interest =5% approx
