Answer:
The number of years is 28 years
Step-by-step explanation:
The computation is shown below:
Gross domestic product × (1 + growth rate)^time = Increased Gross domestic product
$25 trillion × (1 + 0.05)^time = $100 trillion
(1 + 0.05)^time = 4 trillion
t = ln 4 ÷ ln 1.05
= 28 years
Hence, the number of years is 28 years
We simply applied the above formula so that the correct number of years could come