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Unit 2: Linear Programming Problems




          Step 2: Fix up the graphic scale                                                      Notes
                      Maximum points = 600
                       Minimum points = 300
                               2 cms. = 200 points

          Step 3: Graph the data
































          Step 4: Find the co-ordinates of the corner points

                  Corner Points               X1                       x2
                      O                       0                        0
                       A                    300                        0
                       B                    200                      200
                       C                      0                      400

          Step 5: Subscribe the co-ordinates of the corner points into objective function
          Maximise                ‘Z’ = 2x  + 3x
                                         1   2
                              At ‘O’, Z = 2(0) + 3(0) = 0
                              At ‘A’, Z = 2(300) + 3(0) = 600

                               At ‘B’, Z = 2(200) + 2(200)= 1,000
                              At ‘C’, Z = 2(0) + 3(400) = 1,200

          Inference

          A maximum profit of ` 1,200 can be earned by producing 400 units of only type B and none of
          type A.







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