Two mutually exclusive investment projects have the following forecasted cash flows

Two mutually exclusive investment projects have the following forecasted cash flows

Year                 A                                 B

0                      $-20,000                $-20,000

1                          10,000                           0

2                          10,000                           0

3                            10,000                           0

4                          10,000                  60,000

a. Compute the internal rate of return for each project,

b. Compute the net present value for each project if the firm has a 10% cost of capital

c. Which project should be adopted and why?