Answer:
3.5years
Explanation:
Computation for the cash payback period
First step is to calculate Net cash flow per year using this formula
Net cash flow per year = Cash inflow - Cash outflow
Let plug in the formula
Net cash flow per year= $80,000 - $40,000
Net cash flow per year= $40,000
Now let calculate Cash payback period using this formula
Cash payback period = Initial investment / Net cash flow per year
Let plug in the formula
Cash payback period = $140,000 / $40,000
Cash payback period= 3.5years
Therefore the Cash payback period is 3.5years