please attempt all, do not use Excel, use the normal manual formulae

Table 1 Projected Cash Flows for Investments X and Y End of Period Cash Flows ($) Year Project X 1 -2,000,000 2 0 3 400,000 4 600,000 5 1,800,000 Project Y -3,000,000 975,000 975,000 975,000 975,000 Required Use the following methods to decide which of the two investment projects you would choose. (a) Payback Period; (b) Discounted Payback Period (assume cost of capital of 15%); (c) Net Present Value (assume cost of capital of 15%); (d) Profitability Index (assume cost of capital of 15%); (e) Internal Rate of Return, (assume cost of capital of 15%); and (f) Modified Internal Rate of Return (assume cost of capital of 15%)