Answer:
a. 10%
Explanation:
Interest cost at 6% = 10,000,000 * 6%
Interest cost at 6% = 600,000
Unused balance = 30,000,000 - 10,000,000
Unused balance = 20,000,000
Commitment fee at 0.25% = 20,000,000 * 0.25%
Commitment fee at 0.25% = 50,000
Compensating balance at 35% = 10,000,000 * 35%
Compensating balance at 35% = 3,500,000
Usable amount = 10,000,000 - 3,500,000
Usable amount = 6,500,000
So, Cost of borrowing = (600,000 + 50,000) / 6,500,000
Cost of borrowing = 650,000 / 6,500,000
Cost of borrowing = 0.1
Cost of borrowing = 10%
So, the effective cost of borrowing is 10%