(Calculating IRR) (Related to Checkpoint 11.4 on page 376) Determine the IRR to the nearest percent for the following projects:

a. An initial outlay of $10,000 resulting in cash inflows of $2,000 at the end of Year 1, $5,000 at the end of Year 2, and $8,000 at the end of Year 3

b. An initial outlay of $10,000 resulting in cash inflows of $8,000 at the end of Year 1, $5,000 at the end of Year 2, and $2,000 at the end of Year 3

c. An initial outlay of $10,000 resulting in cash inflows of $2,000 at the end of Years 1 through 5 and $5,000 at the end of Year 6