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Time & Work
Time, Distance and Speed

If a pipe can fill a tank in 6 hours and another pipe can empty it in 8 hours, how long will it take to fill the tank if both pipes are opened together?

B. 12 HOURS
Posted in:  Time & Work -  Aptitude -  Mathematics

A and B can complete a work in 20 days together. If A alone can do it in 30 days, how long will B take to complete the work alone?

A. 40 DAYS
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C can complete a task in 12 days, while D can do it in 18 days. If they work together for 6 days, how much of the work is left?

A. 1/3
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If A can do a piece of work in 15 days and B can do it in 10 days, how long will it take for both A and B to complete the work together?

A. 6 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

A can do a piece of work in 12 days, B can do it in 15 days, and C can do it in 20 days. How long will they take to complete the work together?

B. 6 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics