Multiple choice

The figure below shows a graph, which qualitatively relates cutting speed and cost per piece produced.

The three curves, 1, 2 and 3 respectively represent

  1. machining cost, non-productive cost, tool changing cost

  2. non-productive cost, machining cost, tool changing cost

  3. tool changing cost, machining cost, non-productive cost

  4. tool changing cost, non-productive cost, machining cost
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