The following information relates to questions 20 and 21: A company operates a process costing system using the first-in-first-out (FIFO) method of valuation. No losses occur in the process. All materials are input at the commencement of the process. Conversion costs are incurred evenly through the process. The following data relate to last period: Units Degree of completion Opening work in progress 12,000 60% Total number of units completed 14,000 Closing work in progress 13,000 30% £ Costs arising: Materials 51,000 Conversion 193,170 20 What was the total number of units input during last period? A 12,000 B 13,000 C 15,000 D 17,000 21 What was the value of the closing work in progress for last period? A £21,330 B £21,690 C £22,530 D £22,890 C D
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