Multiple Choice Questions

3 men and 5 women do a piece of work in 9 days and 2 men 7 children do the same in 6 days How many w...........

Quantitative Aptitude (CSC) Time and work

3 men and 5 women do a piece of work in 9 days and 2 men 7 children do the same in 6 days. How many women can do as much work as 21 children ?

Answer
10
Explanation :
3m+5w = 9days…….(1)6m+10w = 18 days
2m+7c = 6 days…….(2)6m+21c = 18 days
21c = 10w

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