Answer: 12.5%
Explanation:
The effective rate of interest is simply referred to as the interest on a loan, savings account or financial product. Based on the information given in the question, the effective interest rate will be:
= Interest rate / (1 - CC)
where,
Interest rate = 10%
Compensating balance CC = 20%
= Interest rate / (1 - CC)
= 10% / (1 - 20%)
= 0.1 / (1 - 0.2)
= 0.1 / 0.8
= 0.125
= 12.5%
The effective interest rate is 12.5%