Multiple choice

8 women cam complete a work in 10 days and 10 children take 16 days to complete the same work. How many days will 10 women and 12 children take to complete the work ?

  1. 3 days

  2. 4 days

  3. 5 days

  4. 6 days 
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

8 women = 10 days, so 1 woman = 80 days. 10 children = 16 days, so 1 child = 160 days. 10 women + 12 children work rate = 10/80 + 12/160 = 1/8 + 3/40 = 5/40 + 3/40 = 8/40 = 1/5. Time taken = 5 days.

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