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Three men, four women and six children can complete a work in 9 days. A women does double the work a man does and a child does half the work a man does. How many women alone can complete this work in 9 days?

Correct Answer: 7

Explanation:

Given (3 Men + 4 Women + 6 Children) -----> 9 days


But W = 2M and C = M/2


Now, convert Men and Children into Women by


3 W 2   +   4 W   +   6 W 4 = >   3 2   +   4   +   3 2   =   7   Women  


Therefore, 7 women alone can complete this work in 9 days.


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