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Time & Work
Time, Distance and Speed

A and B can complete a work in 20 days. If A works alone for 5 days and then B joins him, how many more days will they take to finish the work?

A. 10 DAYS
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If a pipe can fill a tank in 8 hours and another pipe can empty it in 12 hours, how long will it take to fill the tank if both pipes are opened together?

D. 16 HOURS
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A can complete a work in 10 days, while B can complete the same work in 15 days. How long will they take to complete the work together?

B. 8 DAYS
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If a work can be completed by 8 workers in 12 days, how many workers are needed to complete the same work in 6 days?

A. 16 WORKERS
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A and B can complete a work in 18 days and 24 days respectively. If they work together for 6 days, how much of the work is left?

C. 1/2
Posted in:  Time & Work -  Aptitude -  Mathematics