Question
12 women alone can complete a piece of work in 5 days, where as 3 women and 9 children together can complete the same piece of work in 10 days. In how many days can 36 children complete the same piece of work ?
Answer: Option C
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60 women will do the work in 1 day.
30 women and 90 children together will do the work in 1 day.
Therefore, 60 W = 30 W + 90 C => 30W = 90C => 1W = 3C Therefore, 3W + 9C = 18C
M1 D1 = M2 D2
=> 18 * 10 = 36 * D2 => D2 = (18 * 10)/36 = 5 days
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