Question: 1. a . Show that this model has an unbounded solution by Big M Method. (25P) b. What can be changed to have a bounded

1. a.Show that this model has an unbounded solution by Big M Method. (25P)

b. What can be changed to have a bounded solution for this model? Explain by solving it. (25P)

Max Z= 3x1 + 6x2

s.to

3x1 + 4x2 12

-2x1+ x2 4

x1, x2 0

2. a.Find the starting solution of this transportation method by North-West Method. (15P) (Unit transportation costs are given in the table)

b. Then find the optimal solution of this transportation method by Stepping Stone Method. (35P)

D1 D2 D3 D4 Supply

M1 8 16 18 20 25

M2 12 7 11 13 30

M3 10 5 20 22 15

Demand 20 15 15 20

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