Answer:
$312,966.57
Explanation:
The lump sum payment that my friend will receive shall be determined through the present value of annuity formula which is given as follows:
Lump sum payment=Present value of annuity=R[(1-(1+r)^-n)/r]
In the given question
R=Amount that my friend will receive per year=$50,000
r=Discount rate=15%
n=number of years for which the payment will be received=20
Lump sum payment=Present value of annuity=$50,000[(1-(1+15%)^-20)/15%]
=$312,966.57