Question: Consider the following transportation problem. Node 4 5 6 7 Supply 1 7 2 -1 0 10 2 4 3 2 3 30 3 2

Consider the following transportation problem.

Node 4 5 6 7 Supply

1 7 2 -1 0 10

2 4 3 2 3 30

3 2 1 3 4 25

Demand 10 15 25 15

a. Give the starting basic solution using northwest-corner method. Show its

current total cost.

b. Find an optimal solution. Show the optimal total cost.

c. What is the effect on the optimal solution if the cost of cell (1-4) is

changed to 1?

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