$($IPR calculation$)$ Determine the IRR on the following projects:

a$.$ An initial outlay of $$11,000$ resulting in a free cash flow of $$1,911$ at the end of each year for the next $10$ years b$.$ An inilial ouflay of $$11,000$ resulting in a free cash flow of $$2,168$ at the end of each year for the next $19$ years c$.$ An inilial ouflay of $$11,000$ resulting in a free cash flow of $$1,155$ at the end of each year for the neat $15$ years d$.$ An intiat cutloy of $511,000$ restaing in a free cach foor of $$2,06$ at Bue end of each year for the neet $4$ years

a$.$ What is the IPR of a propect with an initial octlay of $$11,000$ resuting in a hee cauh flow of $$1,511$ at the end of each year for the next $10$ years?

$\%($Round to two decimal places.$)$