Answer:
Hence, the Nominal annual rate is 20.28%.
Effective annual rate is 22.43%.
Step-by-step explanation:
Amount borrowed = $38,672.
Weekly repayment for 16 weeks = $2,500.
Loan repayment = (Loan amount x r) / {1-(1+r)-n}
$2,450 = ($38,672 x r)/{1-(1+r)-16}
r= 0.39%
Weekly interest rate = 0.39%
Nominal annual rate = 0.39 % x 52 weeks = 20.28%
Effective annual rate =
= 0.2243 = 22.43%