Problem 3: A four-year financial project has net cash flows of $20,000;$25,000; $30,000; and $50,000 in the next four years. It will cost $75,000 to implement the project. If the required rate of return is 0.2, conduct a discounted cash flow calculation to determine the NPV. Problem 6: Use a weighted score model to choose between three projects (A, B, C) for updating an important internal process. The relative weights for each criterion are shown in the following table as are the scores for each project on each criterion. A score of 1 represents unfavorable, 2 satisfactory, and 3 favorable. It is not necessary for the weights to sum to 100