The construction of a multi-year infrastructure project is estimated to cost 100,000$ at a time 0, $70,000 at a time 1 and 60,000 at a time 2. annual operation and maintenance from year 3 to 20 will be 40,000/year. Annual benefits to society (from year three to year 50) are estimated at 50,000/year the discount rate is 5%.
Question if asked to calculate the benefit cost ratio (B/C) criterion for the project, the value of B, I and C' will be? Show your steps