Answer:
8 years
Step-by-step explanation:
payback period the Time duration in which a project pays back the initial investment to the business in the form of cash flows.
Initial Investment = $135,000
First 2 years have variable cash flows
Recovered in first two years = $25,000 + $20,000 = $45,000
Remaining Balance after 2 years = 135,000 - $45,000 = $90,000
After 2 years there is is constant cash flow of $15,000
Pay back years for $90,000 = $90,000 / $15,000 = 6 years
Total Payback period = 2 years + 6 years = 8 years