6. The beginning inventory and the purchases of item ABC during the year were as follows:8 pts January 1 inventory 1units at $100 $1000 March 25 Purchase 20 units at $125 2,500 July 30 Purchase 15 units at $150 2,250 October 8 Purchase 20 units at $200 4,000 9,750 65 There are 25 units of items ABC in the physical inventory at December 31 (the periodic system is used). Determine the inventory cost First in First Out method s. Weighted average method