1. [Model Formulation of Linear Programming - Manufacturing] The Glendora Electrocomp Corporation manufactures two electrical products: air conditioners and large fans. The assembly process for each is similar in that both require a certain amount of wiring and drilling. Each air conditioner takes 3 hours of wiring and 2 hours of drilling. Each fan must go through 2 hours of wiring and 1 hour of drilling. During the next production period, 240 hours of wiring time are available and up to 140 hours of drilling time may be used. Each air conditioner sold yields a profit of $25. Each fan assembled may be sold for a $15 profit. Formulate this LP production-mix situation. (a) What are the Decision Variables?

(b) What is the Objective Function?

(c) What are Constraint Equations including non-negativity constraints?

(d) How many air conditioners and large fans should be manufactured to maximize the revenue of this company? What is the maximum revenue with the best optimal solution? (NOTE: You can use either EXCEL-Solver or QM for Windows although you can solve this problem using graphical method on a scratch paper or online graphical tools.)