Question: If there's any graph please draw it on paper A firm buys semiprecious stones to make bracelets. Its supplier offers the discount schedule in the
If there's any graph please draw it on paper

A firm buys semiprecious stones to make bracelets. Its supplier offers the discount schedule in the following table. The firm operates 250 days per year. Usage rate is 30 stones per day, and ordering cost is $50 per order. Quantity (stones) Unit Price 1 - 399 $10 400 - 799 $9.9 2 800 $9.8 1. If carrying cost is $3 per year for each stone, find the order quantity that will minimize the annual total cost and the corresponding total cost. [10 marks] 2. If the delivery time is five working days, at what inventory level should the firm reorder? [2 marks] 3. What is the optimal average number of orders the firm should make per year? [3 marks]
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