i need to know how to do this by hand not using excel

15. Comparing Investment Criteria. Consider the following two mutually exclusive projects: Year 0 1 2. 3 Cash Flow (A) - $210,000 15,000 30,000 32,000 425,000 Cash Flow (B) -$20,000 12,000 10,500 9,500 8,200 C. Whichever project you choose, if any, you require a 15 percent return on your investment. a. If you apply the payback criterion, which investment will you choose? Why? b. If you apply the NPV criterion, which investment will you choose? Why? If you apply the IRR criterion, which investment will you choose? Why? d. If you apply the profitability index criterion, which investment will you choose? Why? Based on your answers in (a) through (d), which project will you finally choose? Why? e