Multiple choice

42 women can do a piece of work in 18 days. How many women would be required to do the same work in 21 days?

  1. 36

  2. 24

  3. 30

  4. 44
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Using inverse variation: More days means fewer women. Total work = 42 × 18 = 756 woman-days. For 21 days: 756 ÷ 21 = 36 women. Option A is correct. Option 24 would be correct if days increased more than proportionally. Option 30 and 44 don't satisfy the inverse relationship.

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