Multiple choice

24 men complete a job by working 7 hours per day for 27 days. 14 men will complete the same work by working 9 hours per day in -

  1. 20 days

  2. 25 days

  3. 36 days

  4. None of these
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Using the work formula: M1 × D1 × H1 = M2 × D2 × H2. Given: 24 × 27 × 7 = 14 × D × 9. So D = (24 × 27 × 7) ÷ (14 × 9) = (24 × 27 × 7) ÷ 126 = 4536 ÷ 126 = 36 days. This follows the inverse relationship between men and days/hours.

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