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Asked in PPSC, FPSC and other one-paper exams (compiled from unofficial resources).

Ratios, Proportions & PercentagesDirect and Inverse Variations

12 men can complete a work in 24 days. In how many days will 8 men complete the same work?

  1. A.30 days
  2. B.32 days
  3. C.36 daysCorrect answer
  4. D.40 days

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Quick fact: Using inverse variation, $12 \times 24 = 8 \times x$, so $x = \frac{12 \times 24}{8} =$ $36$ days.

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