Determining scarce resources for OPT application Tops R. Us Inc. produces pickup truck tops out of aluminum. The raw materials are bought from an aluminum manufacturer and then machined and assembled. The machining department has a capacity of 300 hours per week. The assembly department has a capacity of 360 hours per week. The company produces two kinds of truck tops. Fancy Top and Plain Top, in these two departments. The following data pertain to the contribution margins and production requirements of each product:

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Contribution margin. Machining Fancy Top $200 Plain Top $150 20 hrs. per unit 10 hrs. per unit Assembly 36 hrs. per unit 18 hrs. per unit REQUIRED a. Graph the capacity constraints and indicate the constraint which is relevant and that which is not. b. Determine the scarce resource (bottleneck) of the firm.