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Please answer the following question: QUESTION 8 A railroad needs to move the maximum amount of material (maximum arch capacity is given in the network)

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QUESTION 8 A railroad needs to move the maximum amount of material (maximum arch capacity is given in the network) through its rail network. Formulate the LP model to determine this maximum amount based on the following network diagram. 6 5 8 6 6 2 Identify all constraints associated with "node 2". O a. X12 - X25 = 0, and X12 $ 5 O b. X12 + X25 = 0, X12

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