4. A company that manufactures amplified pressure transducers wishes to decide between the machines shown-variable speed (VS) and dual speed (DS). Compare them on the basis of rate of return and determine which should be selected if the MARR 15% per year. 4. A company that manufactures amplified pressure transducers wishes to decide between the machines shown-variable speed (VS) and dual speed (DS). Compare them on the basis of rate of return and determine which should be selected if the MARR = 15% per year. First cost, S AOC, $ per year VS -250,000 -231,000 DS -225,000 -235,000 Overhaul in year 3, $ -26,000 Overhaul in year 4, $ -39,000 Salvage value, S 50,000 10,000 Life, years 6 6