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Problem 5-11 A manager must decide which type of machine to buy, A, B, or C. Machine costs (per individual machine) are as follows: Machine A B C Cost $70,000 $60,000 $50,000 Product forecasts and processing times on the machines are as follows: PROCCESSING TIME PER UNIT (minutes) Annual Product Demand 1 11,000 2 24,000 3 26,000 4 22,000 A 5 5 2 1 B 1 6 4 6 C 2 2 5 3 a. Assume that only purchasing costs are being considered. Compute the total processing time required for each machine type to meet demand, how many of each machine type would be needed, and the resulting total purchasing cost for each machine type. The machines will operate 8 hours a day, 240 days a year. (Enter total processing times as whole numbers. Round up machine quantities to the next higher whole number. Compute total purchasing costs using these rounded machine quantities. Enter the resulting total purchasing cost as a whole number. Omit the "$" sign.) Total processing time in minutes per machine: A B