Wood Walker is a self-employed furniture maker. He makes 4 different types of tables, A, B, C, and D. Each model of table requires a certain amount of time for the cutting of component parts, for assembling, and for painting. Wood Walker can sell all the units he makes. Further, the model C is made without painting Requirements and profit margins are shown in the table below:

Using the data in the above table, clearly state your decision variables and formulate an LP model that will help Wood Walker determine the product mix that maximizes his monthly profits.

Model A B C D Capacity (hrs/month) Required Time Per Table (hrs) Assembling Painting Cutting 1 2 2 3 200 2 4 4 7 300 2 4 0 5 150 Profit/ unit $35 $40 $20 $50