The daily demand of one product is 200 units. Ordering cost is 20 JD per order. The unit price is 20 JD. Holding cost per unit per year is 20% of a unit price. The company operates 250 days per year. a) What is the economic order quantity (EOQ)? b) What is the number of orders per year? c) What is the expected time between orders? d) What is the total annual cost of holding and ordering the inventory? e) What is the average inventory level? f) What is the maximum inventory level?