In: Finance
The city of Toronto is considering two types of green water filtration subsystems. Design A requires an initial investment of $500,000, with annual operating and maintenance costs of 10% of the investment for the next 15 years. Design B needs an investment of $250,000, with annual operating and maintenance costs of $75,000 per year for the next 15 years. Tax collections from Torontonians would be $85,000 per year. The interest rate is 6%, and no salvage value is associated with either system.