Question: Problems 1 3 5 contributions are $ 2 0 0 per unit for model DRB and $ 2 8 0 per unit for model DRW

Problems
135
contributions are $200 per unit for model DRB and $280 per unit for model DRW. The linear programming model for this problem is as follows:
Max 200DRB+280DRW
s.t.
20DRB+25DRW40,000 Steel available
40DRB+100DRW120,000 Manufacturing minutes
60DRB+40DRW96,000 Assembly minutes
DRB,DRW0
The computer solution is shown in Figure 3.20.
a. What are the optimal solution and the total profit contribution?
b. Another supplier offered to prowide Deegan Industries with an additional 500 pounds of the steel alloy at $2 per pound. Should Deegan purchase the additional pounds of the steel alloy? Explain.
c. Deegan is considering using overtime to increase the available assembly time. What would you advise Deegan to do regarding this option? Explain.
d. Because of increased competition, Deegan is considering reducing the price of model DRB such that the new contribution to profit is $175 per unit. How would this change in price affect the optimal solution? Explain.
e. If the available manufacturing time is increased by 500 hours, will the dual value for the manufacturing time constraint change? Explain.
Problems 135 contributions are $200 per unit for model DRB and

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