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Let the rate for each child = 1 unit per day.vaibhav101 wrote:3 men, 4 women and 6 children can complete a work in 7 days. A woman 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 7 days?
A 7
B 8
C 12
D 15
E none of these
Starting point: 3 men, 4 women and 6 childrenvaibhav101 wrote:3 men, 4 women and 6 children can complete a work in 7 days. A woman 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 7 days?
A 7
B 8
C 12
D 15
E none of these
We can let the rate of a man = m, the rate of a woman = 2m, and the rate of a child = (1/2)m, thus:vaibhav101 wrote:3 men, 4 women and 6 children can complete a work in 7 days. A woman 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 7 days?
A 7
B 8
C 12
D 15
E none of these
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