Answer:
D. 10.0%
Step-by-step explanation:
As the bank reqiresd 10% compensating balance the actual amount unrestricted for the loan is 48,000 x (1 - 10%) = 43,200
and from this amount we have to solve for the effective rate:
principal x rate = interest
48,000 x 0.09 = 4,320
now we divide the interest over the actual principal to know the effective rate:
4,320 / 43,200 = 0.10 = 10%