Formulate a Linear Programming model to identify the optimum production quantity, so the company

maximizes its profit. The company produces two refrigerator models: large $($L$)$ and medium $($M$).$

Although materials to produce the refrigerators are available, fabrication time and assembly time are

limited$.$ The time required for fabrication and assembly per refrigerator unit is summarized in the

following table, along with the total available time