Answer:
$38,851 approx
Explanation:
As per the information provided in the question, the minimum annual rate of return would be at-least equal to the usual rate of return the investor (here uncle) earns. Here it is 9% per annum.
Anything earned below this rate of return will not satisfy the investor since this represents the minimum required rate of return.
A= [tex]P(1 + r)^{n}[/tex]
Where A= Amount
P= Principal
r= Annual Rate Of Interest
n= period of loan
Therefore, A= [tex]30,000(1 + .09)^{3}[/tex]
A= $38,850.87 or $38,851 approx.