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Consider the transshipment network of Figure 1. Nodes (1) and (5) are the plant sites. The plants produce 200 and 150 truckloads respectively. Nodes (3),(6), and (9) are the outlet sites. The outlets demand 50,250 , and 50 truckloads, respectively. The number on arc (i,j) indicates the costs of transporting one truckload from i to j. Assume the cost from i to j is the same as the cost from j to i. - Find the least costs of moving one truckload from (1) to (3), (6), and (9). - Find the least costs of moving one truckload from (5) to (3), (6), and (9). - Formulate and solve the transportation model. What is the minimum total cost? Figure 1: Network Diagram