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The management of Hartman Company is trying to determine the amount of each of two products to produce over the coming planning period. The

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The management of Hartman Company is trying to determine the amount of each of two products to produce over the coming planning period. The following information concerns labor availability, labor utilization, and product profitability: Department ABC Profit contribution/unit Product (hours/unit) Labor-Hours 1 2 Available 1.00 0.35 100 0.30 0.20 36 0.20 0.50 50 $30.00 $15.00 a. Develop a linear programming model of the Hartman Company problem. Solve the model to determine the optimal production quantities of products 1 and 2. b. Suppose that 10, 6, and 8 hours of overtime may be scheduled in departments A, B, and C, respectively. The cost per hour of overtime is $18 in department A, $22.50 in de- partment B, and $12 in department C. Formulate a linear programming model that can be used to determine the optimal production quantities if overtime is made available. What are the optimal production quantities, and what is the revised total contribution to profit? How much overtime do you recommend using in each department? What is the increase in the total contribution to profit if overtime is used? G. Kunz and Sons, Inc., manufactures two products used in the heavy equipment industry. Both products require manufacturing operations in two departments. The following are the production time (in hours) and profit contribution figures for the two products: Labor-Hours Product 1 2 Profit per Unit $25 $20 Dept. A Dept. B 6 12 8 10 For the coming production period, Kunz has available a total of 900 hours of labor that can be allocated to either of the two departments. Find the production plan and labor alloca- tion (hours assigned in each department) that will maximize the total contribution to profit.

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