please do this in excel and show work!

a) Make up an investment that has an IRR of 25% assuming the required return is 30%. b) Make up an investment that has an IRR of 25% assuming the required return is 20%. By "make up." I mean use Excel or pen and paper to write down a timeline (as many or as few years as you want) and the cash flows, positive or negative, each year. Please answer both a) and b). Upload Choose a File