9-1B. (IRR calculation) Detennine the internal rate of return on the following projects:

a. An initial outlay of $1 0,000 resulting in a single cash flow of $19,926 after 8 years

b. An initial outlay of$10,000 resulting in a single cash flow of$20,122 after 12 years

c. An initial outlay of$10,000 resulting in a single cash flow of $121,000 after 22 years

d. An initial outlay of$10,000 resulting in a single cash flow of$19,254 after 5 years