Answer:
n = 43.6673555
it will take 43.67 year to achice a real GDP of 98,000
Explanation:
we solve for time of a future lump-sum:
[tex]PV (1+r)^n = FV\\(1+r)^n = FV / PV\\[/tex]
we use logarithmics properties:
[tex](1+r)^n = FV/PV\\log_{1+r}FV/PV = n\\n = \frac{log FV/PV}{log(1+r)}[/tex]
PV 49,000
FV 98,000
rate 1.6%
[tex]n = \frac{log 98,000/49,000}{log(1+0.016)}[/tex]
n = 43.6673555