PE 6-1B Cost flow methods

Three identical units of Item Beta are purchased during June, as shown below.

Item Alpha	Units	Cost
June 2	Purchase	1	$ 50
12	Purchase	1	60
23	Purchase	1	70
Total	3	$180
Average cost per unit	$ 60 ($180 3 units

What are the solutions for the below: Assume that one unit is sold on June 27, for $110. Determine the gross profit for June and ending inventory on June 30 using the (a) first-in, first-out (FIFO), (b) last-in, last-out (LIFO); and (c) weighted average and cost methods