Formulate a linear programming model

Practice setting up linear programming models for business applications 

Formulate a linear programming model for the problem you select

Problem 21

The Midland Tool Shop has four heavy presses it uses to stamp out prefabricated metal cover and housings for electronic consumer products. All four presses operate differently are of different sizes. Currently the firm has a contract to produce three products. The contract calls for 400 units of 1; 570 units of product 2; 320 unit of product 3. The time (in minutes) required for each