Due to the unavailability of desired quality of raw materials, ABC Ltd. can manufacture maximum 80 units of product A & 60 units of product B. A consumes 5 units and B consumes 6 units of raw materials in the manufacture respectively and their respective profit margins one RO 50 & RO 80. Further, A requires 1 man-day of labour per unit & B requires 2 man-day of labour per unit.

The constraints operating are:

Supply of raw material - maximum 600 units Supply of labour - maximum 160 man-days. Formulate as a LP model & solve graphically.