1 Lila Do Problems Lila Battle has determined that the annual dem for number 6 screws is 100,000 screws. Lila, wh works in her brother's hardware store, is in charge purchasing. She estimates that it costs $10 every time an order is placed. This cost includes her wages, the cost of the forms used in placing the order, and so on. Furthermore, she estimates that the cost of carrying one screw in inventory for a year is e problem may be mdows and/or Excel QM. INVENTORY CONTROL . one-half of 1 cent. Assume that the demand is con- stant throughout the year. (a) How many number 6 screws should Lila order at a time if she wishes to minimize total inventory cost? (b) How many orders per year would be placed? What would the annual ordering cost be? (c) What would the average inventory be? What would the annual holding cost be? tol l ine doua fom RUP! Lila's brother believes that she places too many orders for screws per year. He believes that an order should be placed only twice per year. If Lila follows her brother's policy, how much more would this cost every year over the ordering policy that she developed in Problem 18? If only two orders were placed each year, what effect would this have on the ROP? Barbara Bright is the purchasing agent for West 2:21