Question

Oil wells A and B can deliver 25 and 15 units of oil, respectively. Refineries C...

Oil wells A and B can deliver 25 and 15 units of oil, respectively. Refineries C and D need to process 20 and 10 units of oil, respectively. Cost to deliver a unit of oil from a well to a refinery is as follows: $10 from A to C, $8 from A to D, $7 from B to C, and $6 from B to D. How should the oil be delivered to minimize the cost? (Indicate what unknowns are, formulate an LP problem, show all steps of solution process, and clearly state how much oil to be delivered from where to where.)

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