SOLVE BY HAND MANUALLY NO SOFTWARE TO BE USED

The following costs are associated with three tomato- peeling machines being considered for use in a canning plant. If the canning company uses an interest rate of 12%, which is the best alterna- tive? Use NPW to make your decision. (Note: Consider the least common multiple as the study period.) Machine First cost O&M costs Annual benefit Salvage value Useful life (yrs) A $52,000 $63,000 $67,000 15,000 9,000 12,000 38,000 31,000 37,000 13,000 19,000 22,000 4 6 12