Answer:
b. 4.0 years.
Explanation:
The computation of the estimated payback period is given below:
The annual cash inflow is
= Net Income + Depreciation of equipment
= $6000 + $6000
= $12,000
Now The payback period of this investment is
= Investment ÷ Annual cash inflow
= $48,000 ÷ $12,000
= 4 years
hence, the option b is correct and the same should be considered