In: Economics
If GDP is $20 trillion, how many years will it take for GDP to increase to $40 trillion if annual growth is 10 percent? Instructions: Enter your answer as a whole number. years.
Solution:-
F = P *(1+i) ^t
Here F = 40, P = 20, I = 10% = 0.10
40 = 20 * (1+0.10) ^t
(1.10)^t = 40 / 20 = 2
Taking log both sides
t = log 2 / log 1.10 = 7.27 yrs ~ 7 yrs