A manager must decide which type of machine to buy, A, B, or C. Machine costs (per individual machine) are as follows: Machine Cost 60,000 50,000 60,000 Product forecasts and processing times on the machines are as follows PROCCESSING TIME PER UNIT (minutes) Annual A B c Product Demand 15,000 25,000 15,000 4 20,000 a. Assume that only purchasing costs are being considered. Compute the total processing time required for each machine type to meet demand, how many of each machine type would be needed, and the resulting total purchasing cost for each machine type. The machines will operate 8 hours a day, 220 days a year. (Enter total processing times as whole numbers. Round up machine quantities to the next higher whole number. Compute total purchasing costs using these rounded machine quantities. Enter the resulting total purchasing cost as a whole number. Omit the sign.) Total processing time in minutes per machine