Clothes, Inc., has an average annual demand for red, medium polo shirts of 25,000 units. The cost of placing an order is $80 and the cost of carrying one unit in inventory for one year is $25.

Required:

a. Use the economic-order-quantity model to determine the optimal order size.

b. Determine the reorder point assuming a lead time of 10 days and a work year of 250 days.

c. Determine the safety stock required to prevent stockouts assuming the maximum lead time is 20 days and the maximum daily demand is 125 units.