Step-by-step explanation:
Raw Materials WIP - Mixing WIP - Assembly
Inventory
Beginning Balance $ 4,000 $6,000 $10,000
Material purchased 10,000
Direct material used 12,000 10,000 (c)2000
Conversion costs incurred 8,000 3,000,
Completed units transferred 21,000 (d) 21,000 (e) 31,000
Cost of goods sold 0
Ending balance (a)$2,000 (b) $3,000 (c) $3,000