4. A project that requires an initial investment of $100,000 will yield the following operating cash flows and net income over its five-years. Compute the project's payback period in years and months.

Year/OCF/Net Income

1) 20,000 15,000

2) 30,000 25,000

3) 40,000 35,000

4) 15,000 10,000

5) 60,000 55,000