Sinagareni Collieries excavates coal from two open cast mines: OCI and OCII. The coal is divided into three qualities: anthracite (A), bituminous (B) and lignite (L). Every week the company has to supply 2400 tons of A, 1600 tons of B and 4400 tons of L. The cost per day for running the mine OCI is ` 30,000, and OCII ` 20,000. Each day OCI produces 600 tons of A, 200 tons of B and 400 tons of L. The corresponding figures for OCII are 200, 200 and 800. Formulate the most economical production plan for finding the number of days for which the mines OCI and OCII should work per week.
Sinagareni Collieries excavates coal from two open cast mines: OCI and OCII. The coal is divided into three qualities: anthracite (A), bituminous (B) and lignite (L). Every week the company has to supply 2400 tons of A, 1600 tons of B and 4400 tons of L. The cost per day for running the mine OCI is ` 30,000, and OCII ` 20,000. Each day OCI produces 600 tons of A, 200 tons of B and 400 tons of L. The corresponding figures for OCII are 200, 200 and 800. Formulate the most economical production plan for finding the number of days for which the mines OCI and OCII should work per week.
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
Section: Chapter Questions
Problem 1RQ
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Sinagareni Collieries excavates coal from two open cast mines: OCI and OCII. The coal is divided into three qualities: anthracite (A), bituminous (B) and lignite (L). Every week the company has to supply 2400 tons of A, 1600 tons of B and 4400 tons of L. The cost per day for running the mine OCI is ` 30,000, and OCII ` 20,000. Each day OCI produces 600 tons of A, 200 tons of B and 400 tons of L. The corresponding figures for OCII are 200, 200 and 800. Formulate the most economical production plan for finding the number of days for which the mines OCI and OCII should work per week.
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