In: Finance
Nancy would like to accumulate $10,000 by the end of 3 years from now to buy a sports car from her friend, Jim. She has $2,500 now and would like to save equal annual end-of-year deposits to pay for the car. How much should she deposit at the end of each year in an account paying 8 percent interest to buy the car?
Step 1:
Compute the future value of amount that she has at present.
Future value of $2,500 after 3 years = Present value × [1 + (Interest rate / Number of compounding periods per year)]Number of compounding periods per year × Time in years
= PV × (1 + r / n)n × t
= $2,500 × [1 + (0.08 / 1)]1 × 3
= $2,500 × (1.08)3
= $2,500 × 1.259712
= $3,149.28
Step 2:
Compute the future value of an ordinary annuity as follows-
Future value of annuity = The amount required to be accumulated after 3 years - Future value of $2,500 after 3 years
= $10,000 - $3,149.28
= $6,850.72
Step 3:
Compute the required annual deposit at the end of each year using the equation given below-
Annual deposit = Future value of an ordinary annuity / [{(1 + r)n – 1} / r]
= $6,850.72 / [{(1 + 0.08)3 – 1} / 0.08]
= $6,850.72 / 3.2464
= $2,110.25
Hence, the she should deposit $2,110.25 at the end of each year to buy the car.