Answer:
b. PMT x {[(1 + r)nn – 1]/r}
Explanation:
The formula that should be calculated for the future value of an ordinary annuity is shown below:
= PMT × {[(1 + r)^n - 1] ÷ r}
Here
PMT denotes the coupon payment
r denotes the rate of interest
n denotes the time period
So as per the given situation, the option b is correct