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If 42 women can do a work in 18 days, how many women will do the same work in 21 days?
  1. 18
  2. 12
  3. 24
  4. 36
Explanation

To find the answer, we calculate the total work:

42 women x 18 days = 756 woman-days

Since the work remains the same, we divide the total work by 21 days:

756 woman-days ÷ 21 days = 36 women

So, 36 women can do the same work in 21 days.

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