The Willow Run Coal Company operates three mines in Kentucky and West Virginia and supplies coal to
Question:
The cost of mining and processing coal is $62 per ton at mine 1, $67 per ton at mine 2, and $75 per ton at mine 3. The percentage of ash and sulfur content per ton of coal at each mine is as follows:
Each plant has different cleaning equipment. Plant 1 requires that the coal it receives can have no more than 6% ash and 5% sulfur; plant 2 coal can have no more than 5% ash and sulfur combined; plant 3 can have no more than 5% ash and 7% sulfur; and plant 4 can have no more than 6% ash and sulfur combined. The company wants to determine the amount of coal to produce at each mine and ship to its customers that will minimize its total cost. Formulate and solve a linear programming model for thisproblem.
Step by Step Answer:
Operations Management Creating Value Along the Supply Chain
ISBN: 978-0470525906
7th Edition
Authors: Roberta S. Russell, Bernard W. Taylor