Answer:
It will take approximately 55 years
Explanation:
The future value of a lump sum is the amount expected at a future date when a sum of money is invested today at a particular rate of interest for certain number of years
FV = PV × (1+r)^(n)
FV= 50,000, PV = 4,000, n-?, r- 5%
50,000 = 4,000 × (1.05)^n
divide both sides by 4000
12.5 = 1.05^n
n= log 12.5/log 1.05
n = 51.8
The number of years = 51.8 + 3 years
=54.767
Approximately 55 years
It will take 55 years