Wednesday, December 26, 2018

Q2-2018-Linear Programming

Question 2: A paint manufacturing organization produces two qualities of paint – Premium paint and Economy paint. It requires three main chemicals for their production – Chemical A, Chemical B and Chemical C. One litre of Premium paint requires 150 units, 250 units and 200 units of Chemical A, Chemical B and Chemical C respectively. Similarly, one litre of Economy paint requires 200 units and 100 units of Chemical A and Chemical B respectively. Manufacturing process of Economy paint gives 50 units of Chemical C per litre of paint production as by-product.
Chemical A, Chemical B and Chemical C are available per day in 3000 units, 5000 units and 1000 units respectively. Premium paint gives a profit of 300 Rs./litre whereas Economy paint has a profit of Rs. 200 /litre.
a) Formulate a linear program to maximize the profit by producing the two types of paints.                                  (4 marks)
b) Use Graphical Method to recommend the optimum product mix. (Draw it on the normal answer sheet showing scale of the two axes. Approximate drawing and answer will be fine if the answer is logically correct).                                                                                             (6 marks)
c) Suppose these Chemicals are hazardous, and they should be used entirely on daily basis. You can reduce the availability of these chemicals to meet this condition. Availability of which chemicals would you reduce and by how much?                                                (10 marks)

Answer is available in a video at https://drive.google.com/file/d/1o2Q80IvsB1NbR_imSy77APbFZrmU6kY2/view?usp=sharing

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