Maslow's restaurant is considering two mutually exclusive projects with the following cash flow streams.

Project A Project B

Year 0 ($130,000) Year 0 ($150,000)

Year 1 $40,000 Year 1 $30,000

Year 2 $40,000 Year 2 $50, 000

Year 3 $40,000 Year 3 $25,000

Year 4 $40,000 Year 4 $55,000

a. compute payback period for both projects

b. compute net present value of both projects, using a 15% required rate of return.

c. using interpolation, estimate the internal rate of return for both projects