Answer:
22.79 years
Step-by-step explanation:
The computation of the number of years is shown below
Future value = Present value × ( 1 + rate)^number of years
$60,000 = $10,000 × (1.09)^n
($60,000 ÷ $10,000) = (1.09)^n
6 = (1.09)^n
Now take the log on both sides
log 6 = n × log 1.09
n = log 6 ÷ log 1.09
= 20.79 years
So, the time is
= 20.79 years + 2 years
= 22.79 years