Explain this problem in words:

6-30 Equivalent Units; Weighted-Average Method

Quantity Schedule

Input

Work-in-process inventory, 1/1 30,000

Units started 180,000

Total units to account for 210,000

Output

Units completed (=210,000 15,000) 195,000

Work in process inventory (12/31) 15,000

Total units accounted for 210,000

Equivalent Units -- Weighted-Average Method

Materials

Units completed 195,000

Work-in-process inventory(12/31) 15,000 x 70% = 10,500

Total equivalent units 205,500

Conversion:

Units completed 195,000

Work-in-process inventory(12/31) 15,000 x 60% = 9,000

Total equivalent units 204,000