Beta Enterprises is considering two projects with the following cash flows:

End of Year	Project E	Project F
0	-5000	-5000
1	2000	1500
2	2000	1500
3	2000	3000
4	1000	3500

Requirements:

1. Calculate the payback period for each project.
2. Determine the net present value at discount rates of 12%, 18%, and 30%.