1) To produce its Wood Products, SAUDI WOOD estimates that it needs 40000 liters of varnish per year. The order cost is SR 400 per order and the annual inventory cost is SR200. a) What is the economic order quantity? b) What is the Total cost? c) How many orders will be placed in one year? d) How will many orders be placed in one year if the order cost becomes SR100 and the annual inventory cost becomes SR100