01/07/20x1	Opening balance	400 units @ $9.00 per unit
09/07/20x1	Sold to A. Gent	250 units
15/07/20x1	Purchased (B. Crew)	160 units @ $9.50 per unit
21/07/20x1	Sold	100 units
31/07/20x1	Closing inventory on hand	210 units

a) value of inventory using Weighted average method and value of inventory using FIFO ( with explanation please)

b) Assuming the FIFO method of valuing inventory is used show the closing general journal entry required to record closing stock as per the stocktake into the accounts.