Answer:
a. We have:
Interest cost of long-term fixed-rate = $191,475
Interest cost of short-term variable-rate = $192,51
b. Long-term fixed rate plan is less costly
Explanation:
a. Determine the total interest cost under each plan.
Interest cost of long-term fixed-rate = Amount required to be borrowed * Fixed interest rate per year * Number of years = $690,000 * 9.25% * 3 = $191,475
Interest cost of short-term variable-rate = (Amount required to be borrowed * First year interest rate) + (Amount required to be borrowed * Second year interest rate) + (Amount required to be borrowed * Third year interest rate) = ($690,000 * 7.50%) + ($690,000 * 12.15%) + (($690,000 * 8.25%) = $192,510
b. Which plan is less costly?
Since the $191,475 interest cost of long-term fixed-rate is less than $192,510 interest cost of short-term variable-rate, this implies that long-term fixed rate plan is less costly.