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Blacktop Refining extracts minerals from ore mined at two different sites in Montana. Each ton of ore type 1 contains

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Blacktop Refining extracts minerals from ore mined at two different sites in Montana. Each ton of ore type 1 contains 20% copper, 20% zinc and 15% magnesium. Each ton of ore type 2 contains 30% copper, 25% zinc and 10% magnesium. Ore type 1 costs $90 per ton and ore type 2 costs $120 per ton. Blacktop would like to buy enough ore to extract at least 8 tons of copper, 6 tons of zinc, and 5 tons of magnesium in the least costly manner.

a. Formulate an LP model for this problem.

b. Sketch the feasible region for this problem.

c. Find the optimal solution.


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a X 1 tons of ore purchased …View the full answer


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Spreadsheet Modeling & Decision Analysis A Practical Introduction to Management Science

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Section: Questions
Problem: 14
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Question Posted: September 22, 2012 01:28:32
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