Exercise2: (а): Write the step by step procedure of Graphical Method. (b): Solve the following Linear Programming Problem by Graphical Method: Max z = 10 x1 + 20 x2 S. t., 2 x1 + x2 < 10 X1 + 2 x2 < 10 and x1, x2 2 0 (c): Solve the following Linear Programming Problem by Graphical Method: Max : Z = 50x + 18y Subject to: 2x + y <100 X+ y <80 x 2 0, y 20

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