Computing internal rate of return. What is the internal rate of return on the following projects, each of which requires a $10,000 cash outlay now and returns the cash flows indicated?

a. $5,213.36 at the end of Years 1 and 2.

b. $1,598.20 at the end of Years 1 through 10.

c. $1,714.64 at the end of Years I through 13.

d. $1,969.50 at the end of Years 1 through 15.

e. $4,198.92 at the end of Years 3 through 7.

f. $1,809.40 at the end of Years 2 through 10.

g. $ 1 8,754.49 at the end of Year 5 only.