The following lots of a commodity p were available for sale during the year. use this information to answer the questions that follow. beginning inventory 5 units at $61 first purchase 15 units at $63 second purchase 10 units at $74 third purchase 10 units at $77 the firm uses the periodic system, and there are 20 units of the commodity on hand at the end of the year. what is the amount of cost of goods sold for the year according to the average cost method?

Thomas kratzer is the purchasing manager for the headquarters of a large insurance company chain with a central inventory operation. thomas's fastest-moving inventory item has a demand of 6,000 units per year. the cost of each unit is $100, and the inventory carrying cost is $10 per unit per year. the average ordering cost is $30 per order. it takes about 5 days for an order to arrive, and the demand for 1 week is 120 units. (this is a corporate operation, and the are 250 working days per year.)a) what is the eoq? b) what is the average inventory if the eoq is used? c) what is the optimal number of orders per year? d) what is the optimal number of days in between any two orders? e) what is the annual cost of ordering and holding inventory? f) what is the total annual inventory cost, including cost of the 6,000 units?