Answer:
Explanation:
Use Future value formula for the calculation of number of years
Future Value = Present value ( 1 + interest rate )^number of years
FV = PV ( 1 + r )^n
$500,000 = $200,000 ( 1 + 10.5% )^n
$500,000 / $200,000 = ( 1 + 0.105 )^n
2.5 = ( 1.105 )^n
log 2.5 = n log 1.105
n = log 2.5 / log 1.105
n = 9.1771
n = 9 years 2 months