Problem 2 : You are given a project with the cash flow table and an annual discount rate as below please answer the following questions. Please have your calculations organized. If possible, put them in a table. (25pts) Year 2 5 Costs (70) (20) 10 5 0 0 benefits (saving) 50 50 10% discount rate 0.909 0.826 0.751 0.683 0.620 0 3 4 0 10 30 40 a) Calculate Net Present Value (NPV) ( 10 pts) b) Calculate Return on Invesment (ROI) Value (10 pts) c) In how many years does this project will pay back? (5 pts)