Multiple choice

Four women and 12 children together take 4 days to complete a piece of work. How many days will 4 children alone take to complete the piece of work if 2 women alone can complete the piece of work in 16 days?

  1. 32

  2. 24

  3. 16

  4. 12

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

If 2 women take 16 days, 1 woman takes 32 days. 4 women take 32/4 = 8 days. In 4 days, 4 women do 4/8 = 1/2 of the work. The remaining 1/2 work is done by 12 children in 4 days, so 12 children do 1/8 of the work per day. 4 children do 1/24 of the work per day, taking 24 days.

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