Two mutually exclusive alternative are being considered for the environmental protection equipment at a petroleum refinary. one of these alternatives must be selected. The estimated cash flow for each alternatives are as follows. Use MARR of 10%

Note: Do not round in between solutions and round up to 2 decimal places for final answer. 

A. Which alternative is preferred, based on the repeatability assumptions? Use AW method. 

Alternative A Alternative B $20,000 $38,000 Capital Investment Annual Expenses 5,500 4,000 Market Value at end of useful 1,000 4,200 life Useful life 5 years 10 years