Please explain and answer with the formula and calculation

3. Watson Incorporation is considering two mutually exclusive one-time projects, named Project A and Project B. Both projects require an initial investment of RM80,000. Project A will last for six years and has expected net future cash flows of RM20,222 per year. Project B will last for five years and has expected net future cash flows of RM24,967 for the first two years and RM32,222 for the last three years. The cost of capital for this project is 12 percent. Required: (a) Compute the Internal Rate of Return (IRR) for Project A. (6 marks) (b) Calculate the Payback Period (PP), Net Present Value (NPV) and Profitability Index (PI) for both projects. (12 marks) (c) Based on your answer in 3(b), determines which project that you should choose. State your reason. (2 marks)