Question
7 men can complete a piece of work in 6 days while 4 women can do it in 14 days. In how many days can 2 women and 2 men complete it?
The correct answer is
12 days
\(T=(2/42+2/56)^{-1}=12\text{ days}\)
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Important Questions from Time and Work
- A works thrice as fast as B. If B can complete a work in 256 days independently, then find the number of days in which A and B can together
finish the work. - A can finish a job in 146 days, B can finish the same job in 219 days and C can finish the same job in 292 days. If all three are working together, how many days will they require to complete the same job?
- X can finish a work in 153 days, Y can finish a work in 255 and Z can finish the same piece of work 340 days. How many days will they require to complete the work, if X, Y and Z are working together?
- A finish a work in 1170 days and B can do the same work in 2340 days. Working together, they will complete the same work in how many days?
- A can finish a job in 102 days, B can finish the same job in 153 days and C can finish the same job in 204 days. If all three are working together, how many days will they require to complete the same job?
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