Q5) A company manufactures two products (C and D). Each product must pass through four departments before shipping to the suppliers: wiring, drilling, assembly and inspection. Product C time requirement from each department as follow: 1.5 hours in wiring, 2 hours in drilling, one hour in assembly and half an hour in inspection. Product D time requirement from each department as follow: one hour in wiring, 3 hours in drilling, 2 hours in assembly and half an hour in inspection. The production time available in each department each month (maximum) and the minimum monthly production requirement from product C and D to fulfill contracts as follows: Wiring capacity is 1,500 hours, drilling capacity is 2,350 hours, assembly capacity is 2,600 hours and the inspection capacity is 1,200 hours. Product C minimum production level is 200 units and product D minimum production level is 400 units. Each product contributes in the profit as; product C $15 and product D $12. Formulate this production-mix situation as a Linear programming model