A Power Company buys coal from a Coal mine to generate electricity in rural areas. The Coal mine can supply coal at the rate of 3,500 tons per day for $10.50 per ton. The Power Company uses the coal at a rate of 800 tons per day and operates 365 days per year. The annual carrying cost for coal is 20% of the acquisition cost, and the ordering cost is $5,000. a) What is the economical production lot size? b) What is the Power Company’s maximum inventory level for coal?

Purchasing and Supply Chain Management
6th Edition
ISBN:9781285869681
Author:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Publisher:Robert M. Monczka, Robert B. Handfield, Larry C. Giunipero, James L. Patterson
Chapter16: Lean Supply Chain Management
Section: Chapter Questions
Problem 10DQ: The chapter presented various approaches for the control of inventory investment. Discuss three...
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EOQ for Production Lots Exercise
A Power Company buys coal from a Coal mine to
generate electricity in rural areas. The Coal mine
can supply coal at the rate of 3,500 tons per day for
$10.50 per ton. The Power Company uses the coal
at a rate of 800 tons per day and operates 365 days
per year. The annual carrying cost for coal is 20%
of the acquisition cost, and the ordering cost is
$5,000.
a) What is the economical production lot size?
b) What is the Power Company’s maximum
inventory level for coal?

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