3 In Problem 2, assume that before being shipped to Los Angeles or New York, all oil produced at the wells must be refined at either Galveston or Mobile. To refine 1,000 barrels of oil costs $12 at Mobile and $10 at Galveston. Assuming that both Mobile and Galveston have infinite refinery capacity

formulate a transshipment and balanced transportation model to minimize the daily cost of transporting and refining the oil requirements of Los Angeles and New York.

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TABLE 60 To ($) From L.A. Detroit Atlanta Houston Tampa L.A. 0 140 100 90 225 Detroit 145 0 111 110 119 Atlanta 105 115 0 113 78 Houston 89 109 121 0 Tampa 210 117 82 0