Problem 6: Calculating NPV and IRR. Use the following set of cash flows to calculate the NPV and IRR. Year 0 1 2 3 Cash flow -6,500 ol 6,8001 2.700 6a. The NPV is $ 6a. Points: 2.5 6b. The NPV is $ 6b. Points: 2.5 6c. The NPV is $ 6c. Points: 2.5 6d. The IRR is 6d. Points: 2.5 Lif the required rate of return is 9%. _if the required rate of return is 19%. Lif the required rate of return is 29%. %