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A group is allocated \( 9.0 \) t and reports \( 9.6 \) t. It is over budget by

  • A.6.0 per cent
  • B.0.6 per cent
  • C.16 per cent
  • D.6.7 per cent

Answer: D

Correct answer: 6.7 per cent

The overrun is measured against the allocation: \[ \frac{9.6 - 9.0}{9.0} = \frac{0.6}{9.0} = 0.0667 = 6.7\ \text{per cent.} \] Dividing by the reported weight instead gives 6.25 per cent. The point of allocating targets by group is precisely that a number like this can be computed and acted on while the design can still be changed.

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