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CA Intermediate · Cost and Management Accounting · Service Costing

In service costing, which of the following best describes a 'composite cost unit'?

A composite cost unit is one formed from two measures, such as passenger-km, tonne-km or patient-day. It is used in service costing because a single measure cannot fully capture the service delivered, and it is not a pool of costs or a sales-based measure.

  1. AA unit made of two measures, such as passenger-km or tonne-kmCorrect
  2. BA unit that combines costs of several departments into one pool
  3. CA unit used only when output is homogeneous and physical
  4. DA unit based on the monetary value of sales

Explanation

A composite cost unit combines two related measures, for example passenger and kilometre, or tonne and kilometre, because a single measure cannot capture the service rendered. It is not a cost pool, nor a physical unit of homogeneous output, nor a sales-value measure.

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