A metal plating company is considering three different methods for recovering by-product heavy metals from a manufacturing sites liquid waste. The investment costs and incomes associated with each method have been estimated. All methods have a 10-year life. The MARR is 12% per year. Using internal rate of return method, determine which method should be selected

A metal plating company is considering three different methods for recovering by-product heavy metals from a manufacturing site's liquid waste. The investment costs and incomes associated with each method have been estimated. All methods have a 10-year life. The MARR is 12% per year. Using internal rate of return method, determine which method should be selected Method C A Initial cost ($) -15,000 4,000 -18,000 5,000 -25,000 6,000 Annual income (S) Salvage value (S) Life, years 1000 -500 2000 10 10 10