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Time & Work
Time, Distance and Speed

A and B can complete a piece of work in 12 days. If A works alone for 4 days and then B works alone for 8 days, how many days will it take for A and B to finish the remaining work together?

A. 2 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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If a work can be completed by 5 men in 20 days, how many days will it take for 10 men to complete the same work?

A. 10 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

If A can complete a work in 10 days and 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 done by A in 24 days and by B in 36 days, how many days will it take for both A and B to complete the work together?

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