Answer:
Payback equals 3.08 years
Explanation:
Year Annual Cash-flow Cumulative cash-flow
0 ($180,000) ($180,000)
1 $60,000 ($120,000)
2 $40,000 ($80,000)
3 $70,000 ($10,000)
4 $125,000 $115,000
5 $35,000 $150,000
[tex]Payback period = A + \frac{B}{C}[/tex]
Where,
A is the last period number with a negative cumulative cash flow;
B is the absolute value (i.e. value without negative sign) of cumulative net cash flow at the end of the period A; and
C is the total cash-inflow during the period following period A
therefore [tex]Payback period = 3 + \frac{10,000}{125,000}[/tex] = 3.08 years