3. Lucas Company uses the weighted average method in its process costing system. The company adds materials at the beginning of the process in the Forming Department, which is the first of two stages in its production process. Information concering operations in the Forming Department in October follows: Materials Units Cost Work in process on October 1 6,000 $3,000 Units started during October 50,000 $25,560 Units completed and transferred to the next Department during October 44,000 What was the materials cost of work in process on October 31? A $3,060. B. $5,520. C. $6,000. D. $6,120 8. David Company uses the weighted average method in its process costing system. The first processing department, the Welding Department, started the month with 20,000 units that were 80% complete with respect to conversion costs. The conversion cost in this beginning work-in- process inventory was $123,200. An additional 65,000 units were started into production during the month. There were 19,000 units in the ending work-in-process inventory of the Welding Department that were 10% complete with respect to conversion costs. A total of $389,250 in conversion costs were incurred in the department during the month. What would be the cost per equivalent unit for conversion costs for the month? (Round off to three decimal places.) A. $7.547 B. $7.700 C. $4.634. D. $5.988