
A company sells two different products and . The two products are produced in a common production process and are sold in two different markets. The production process has a total capacity of man-hours. It takes hours to produce a unit of and hours to produce a unit of . The market has been surveyed and company officials feel that the maximum number of units of that can be sold is and that of is . If the profit is per unit for the product and per unit for the product , how many units of each product should be sold to maximize profit? Formulate the problem as .

Important Questions on Linear Programming
To maintain his health a person must fulfil certain minimum daily requirements for several kinds of nutrients. Assuming that there are only three kinds of nutrients-calcium, protein and calories and the person's diet consists of only two food items, and , whose price and nutrient contents are shown in the table below:
Food (per ) | Food (per ) | Minimum daily requirementfor the nutrient | |
Calcium | |||
Protein | |||
Calories | |||
Price |
What combination of two food items will satisfy the daily requirement and entail the least cost? Formulate this as a .

A manufacturer can produce two products, and , during a given time period. Each of these products requires four different manufacturing operations: grinding, turning, assembling and testing. The manufacturing requirements in hours per unit of products and are given below.
Grinding | ||
Turning | ||
Assembling | ||
Testing |
The available capacities of these operations in hours for the given time period are: grinding ; turning , assembling ; testing . The contribution to profit is for each unit of and for each unit of . The firm can sell all that it produces at the prevailing market price. Determine the optimum amount ofAandBto produce during the given time period. Formulate this as a .



A firm manufactures two products, each of which must be processed through two departments, and . The hourly requirements per unit for each product in each department, the weekly capacities in each department, selling price per unit, labour cost per unit, and raw material cost per unit are summarized as follows:
Product | Product | Weekly capacity | |
Department | |||
Department | |||
Selling price per unit | |||
Labour cost per unit | |||
Raw material cost per unit |
The problem is to determine the number of units to produce each product so as to maximize total contribution to profit. Formulate this as a .



