Problem: A cost-benefit analysis of a new irrigation project indicates that the net benefits = Benefit - Cost (B-C) of the project in each year will be $20 million. This project will yield benefits for 10 years. Calculate the present value of benefits minus costs when the social rate of discount is 10%. Does the program merit approval? How would the present value of the net benefits change if the social rate of discount were 15%? You can use spreadsheet software, such as MS Excel, to do the calculation. After that, copy and paste it into a MS Word document, write your answer in the MS Word document, and upload it to Blackboard.