Premier coatings Zambia 'PCZ' produce both interior and exterior paints from two raw materials, Ml and M2. A market survey indicates that the daily demand for interior paint cannot exceed that for exterior paint by more than 1 ton. Also, the maximum daily demand for interior paint is 2 tons. Premier coatings wants to determine the optimum (best) product mix of interior and exterior paints that maximizes the total daily profit.
Formulate a mathematical model of the premier coatings situation that can be used to maximize the total daily profit.