Tenace Corporation uses a periodic inventory system and has provided the following information about one of their laptop computers:

Date	Transaction	Number of Units	Cost per Unit
1/1	Beginning inventory	100	$800
5/5	Purchase	200	$900
8/10	Purchase	300	$1,000
10/15	Purchase	200	$1,050

During the year, 250 laptop computers were sold on 8/15 and 500 laptops were sold on 10/31.

What was ending inventory using the FIFO AND LIFO cost flow assumption?

$60,000

$52,500

$52,000

$40,000

None of the above