James Valley Manufacturing Company uses the FIFO method in its process costing system. On May 1 the beginning work in process inventory in a particular department consisted of 16,000 units, which were 50% complete with respect to materials cost and 40% complete with respect to conversion costs. Cost in beginning work in process inventory was $20,000 in terms of material and $30,000 in terms of conversion. Costs added during the period were $45,000 in terms of material and $50,000 in terms of conversion. There were 12,000 units in that department's ending work in process inventory on May 31, which were 75% complete with respect to materials cost and 50% complete with respect to conversion costs. A total of 50,000 units were completed and transferred out of the department during the month.

Required:

a. Find the equivalent units of production during the month.

b. Determine the total cost of ending work in process inventory, and the total cost of units transferred out.