Fact Pattern:

Kimbeth Manufacturing uses a process cost system to manufacture Dust Density Sensors for the mining industry. The following information pertains to operations for the month of May.

	Units
Beginning work-in-process inventory, May 1	16,000
Started in production during May	100,000
Completed production during May	92,000
Ending work-in-process inventory, May 31	24,000

The beginning inventory was 60% complete for materials and 20% complete for conversion costs. The ending inventory was 90% complete for materials and 40% complete for conversion costs.

Costs pertaining to the month of May are as follows:

	Beginning inventory costs are materials, $54,560; direct labor, $20,320; and overhead, $15,240.
	Costs incurred during May are materials used, $468,000; direct labor, $182,880; and overhead, $391,160.

Question

Using the FIFO method, Kimbeths equivalent unit cost of materials for May is

• A.$4.12

• B.$4.50

• C.$4.60

• D.$4.80