Hard2 marksMultiple Choice
Cost accounting techniquesProcess CostingSyllabus C

ACCA · Question 16 · Cost accounting techniques

A chemical plant uses the weighted average method of process costing.
Opening work-in-progress (WIP) was 2,000 units (60% complete as to conversion).
During the period, 8,000 units were started.
Closing WIP was 3,000 units (40% complete as to conversion).
There were no normal or abnormal losses.

What are the equivalent units for conversion costs?

Answer options:

A.

7,000 units

B.

8,200 units

C.

8,800 units

D.

10,000 units

How to approach this question

First, find units completed and transferred out (Opening + Started - Closing). Then, for weighted average, add the equivalent units of closing WIP. Ignore the completion percentage of opening WIP.

Full Answer

B.8,200 units✓ Correct
Units completed = 2,000 (opening) + 8,000 (started) - 3,000 (closing) = 7,000 units. Under weighted average, equivalent units = completed units (7,000) + closing WIP equivalent units (3,000 * 40% = 1,200) = 8,200 units.

Common mistakes

Trying to use the FIFO method and subtracting the opening WIP equivalent units.

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