Question: Please help me with question c) The purchasing manager for Worthington Industries must determine a policy for ordering boring drills to operate five horizontal boring

Please help me with question c)

The purchasing manager for Worthington Industries must determine a policy for ordering boring drills to operate five horizontal boring machines. Each machine requires exactly 30 boring drills per day to operate, and the firm operates 360 days per year. The purchasing manager has determined that the ordering cost is $80 per order, and the cost of holding the drills is 25 percent of the average dollar value of the inventory held. The purchasing manager has negotiated a contract to obtain boring drills for $165 per drill for the coming year. a. Determine the optimal quantity of boring drills to receive in each order. b. Determine the total inventory-related costs associated with the optimal ordering policy. c. If five days lead time is required to receive an order of drills, how many drills should be on hand when the order is placed?

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