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Time & Work
Time, Distance and Speed

A can do a work in 15 days, B can do it in 10 days, and C can do it in 6 days. If they all work together, how long will it take to complete the work?

B. 3 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

If C can do a piece of work in 20 days and D can do it in 30 days, how long will it take for both C and D to complete the work together?

B. 15 DAYS
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A can complete a task in 15 hours, B in 10 hours, and C in 5 hours. If they all work together, how long will it take to complete the task?

B. 3 HOURS
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A can do a work in 30 days, B can do it in 45 days, and C can do it in 60 days. If they work together, how long will it take them to complete the work?

B. 12 DAYS
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If A can finish a work in 24 hours and B can finish it in 36 hours, how long will it take for both A and B to finish the work together?

A. 14.4 HOURS
Posted in:  Time & Work -  Aptitude -  Mathematics