a$.$ What is the IRR of each project?

b$.$ If the cost of capital is $7\%,$ which one will you choose?

c$.$ If the cost of capital is $4\%,$ which one will you choose?

d$.$ What is the cost of capital at which you are indifferent between the two projects?

e$.$ What is the range of interest rate in which you will prefer Project B over A$?$ and what is the range in which you will prefer Project A over B$?$

f$.$ What is the range of interest rate in which you will reject both projects?

$($Mutually exclusive projects$)$ The following projects are offered to you. The annual cash flows are expected to continue forever.

$****$USE EXCEL FORMULAS$****$