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exclusive projects. Project A will require an investment of $60 million today, and will return $15 million per year in each of the next 10 years. Project B will cost $30 million today, and will return $10 million per year for 7 years. CPI's weighted average cost of capital is 15 percent. a) Calculate the NPV and IRR from each of these projects. - Based solely on the NPV rule, which project is preferred? - Based solely on the IRR rule, which project is preferred? b) Calculate the NPV and IRR of differential cash flows associated with choosing project B instead of project A. - Describe the differential cash flows and use the incremental IRR rule to determine which project is preferred. - Explain how you have applied the incremental IRR rule