Solve these five numerical problems based on the concept of Inventory Valuation.

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1.Assuming Nichols Company had 500 units of leather bundles in its inventory at a cost of 5 each. It purchased, for 2,400, 300 more units of leather bundles for garment manufacturing. Nichols then sold 600 units at a selling price of 10 each, resulting in a gross profit of 2,700. You are required to determine the cost flow assumption used by Kingman.

2.June Corp. sells one product and uses a perpetual inventory system. The beginning inventory consisted of 10 units that cost 20 per unit. During the current month, the company purchased 60 units at 20 each. Sales during the month totaled 45 units for 43 each. What is the number of units in the ending inventory?

3.June Corp. sells one product and uses a perpetual inventory system. The beginning inventory consisted of 10 units that cost 20 per unit. During the current month, the company purchased 60 units at 20 each. Sales during the month totaled 45 units for 43 each. What is the cost of goods sold using the FIFO method?

4.Checkers uses the periodic inventory system. For the current month, the beginning inventory consisted of 1,200 units that cost 12 each. During the month, the company made two purchases: 500 units at 13 each and 2,000 units at 13.50 each. Checkers also sold 2,150 units during the month. Using the average cost method, what is the amount of cost of goods sold for the month?

5.Chess Top uses the periodic inventory system. For the current month, the beginning inventory consisted of 200 units that cost 65 each. During the month, the company made two purchases: 300 units at 68 each and 150 units at 70 each. Chess Top also sold 500 units during the month. Using the average cost method, what is the amount of ending inventory?