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Problem 2 Lina Co. uses a periodic inventory system. Its records show the following for the month of April, in which 68 units are sold. Units Unit cost Total cost April 1 Inventory 30 $9 $ 270 15 Purchases 22 11 242 24 Purchases 38 12 456 Totals 90 968 Instructions: Compute the ending inventory at April 30 and cost of goods sold using FIFO and average-cost methods