The beginning inventory and purchases fro an item for the period were as follows:
Beginning inventory		6 units	@ $73 each
First purchase		10 units	@ $72 each
Second purchase		18 units	@ $74 each
Third purchases		10 units	@ $75 each
The company uses the periodic system. There were 15 units in ending inventory. Determine the cost
of the 15 units in the inventory by each of the following methods.
a) FIFO
b) LIFO
c) Average cost