Question

A jewelry firm buys semiprecious stones to make bracelets and rings. The supplier quotes a price...

A jewelry firm buys semiprecious stones to make bracelets and rings. The supplier quotes a price of $8 per stone for quantities of 600 stones or more, $9 per stone for orders of 400 to 599 stones, and $10 per stone for lesser quantities. The jewelry firm operates 200 days per year. Usage rate is 25 stones per day, and ordering costs are $48.


a.

If carrying costs are $2 per year for each stone, find the order quantity that will minimize total annual cost. (Round your intermediate calculations and final answer to the nearest whole number.)


  Order quantity stones _______


b.

If annual carrying costs are 30 percent of unit cost, what is the optimal order size? (Round your intermediate calculations and final answer to the nearest whole number.)


  Optimal order size stones _______


c.

If lead time is six working days, at what point should the company reorder?


  Reorder quantity stones _______
Math   Statistics-And-Probability   
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