WoodFurni is a furniture manufacturer company that produces three main types of furniture: chairs, tables, and wardrobes. All three products require design and execution, and grinding and polishing before they can be shipped to customers. The following data provide the number of daily hours that each type of furniture require for both these processes, the profit, and the sales estimates.

A total of 378 hours of design and execution time and 262 hours of grinding and polishing time are available next month. Develop and solve a linear optimization model to determine how many units of each furniture the company should make next month to maximize profit contribution.

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Design and execution time (in hours) Grinding and polishing time (in hours) Profit/unit Minimum sales Maximum sales Chairs Tables Wardrobes 0.23 0.54 1.48 1.85 2.12 $156 53 154 $183 27 94 2.53 $211 19 66