Oliver's Oats Pty Ltd is a wholesaler of oat grains to cereal and muesli bar producers. It has reported the following for the month of April 2022: Date Explanation Units Cost price (tonnes) per unit Selling price per Total cost $ Total sales $ unit April 2022 1 Opening balance 95 $500 $47,500 10 Purchases 120 $520 $62,400 12 Sales 135 $555 $74,925 18 Purchases 135 $530 $71,550 24 Sales 105 $555 $58,275 30 Closing balance 110 Assuming Oliver's Oats uses the periodic inventory system and the weighted average cost method, what is the weighted average cost per tonne of the inventory held at the end of April? a. $518.43 Ob. $522.99 c. $516.67 d. $530.00 QUESTION 13 A company purchases and sells lamps and uses a perpetual inventory system. Beginning inventory at 1 March is 10 units at a cost of $13 each. During the month its purchases and sales were as follows: Date March 3: March 7: March 12: March 25: Purchased 10 units Purchase Price $14 Sold 15 units 15 units $16 10 units What was the value of Cost of Goods Sold using the FIFO assumption? a. $405 b. $365 c. $425 d. $395