Multiple choice

12 men complete a work in 6 days, 10 men and 21 women complete the same work in 8 days. In how many days will 10 men complete the same work?

  1. 10

  2. 9

  3. 11

  4. 8

  5. None of these
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Total work = 12 men × 6 days = 72 man-days. If 10 men work alone: 72 ÷ 10 = 7.2 days. The second statement (10 men + 21 women in 8 days) confirms different work rates but is not needed to find 10 men's time. 7.2 is not listed in A-D.

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