Answer (D) is correct . Under FIFO, equivalent units are determined based only on work performed during the current period. They include work performed to complete BWIP, work on units started and completed during the period, and work done on EWIP. Thus, total FIFO equivalent units of conversion cost are BWIP 32,000 units × 80% = 25,600 Started and completed (184,000 – 32,000 in BWIP) 152,000 units × 100% = 152,000 EWIP 48,000 units × 40% = 19,200 Total equivalent units 196,800
Answer (A) is incorrect because The number of 171,200 units omits work on BWIP. Answer (B) is incorrect because The number of 177,600 units omits work on EWIP. Answer (C) is incorrect because The physical units completed equal 184,000.
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