Answer and Explanation:
The computation is shown below:
a. The total interest is
= Principal × rate of interest × time period
= $16,000 × 4 years × 11%
= $7,040
b. The total cost of the car is
= Price of the car + interest
= $20,000 + $7,040
= $27,040
c. The monthly payment is
= (Principal amount + interest) ÷ number of months
= ($16,000 + $7,040) ÷ 48 months
= $480