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Time, Distance and Speed

If a work can be done by 4 men in 30 days, how many men are required to complete the same work in 15 days?

B. 8 MEN
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If C can do a piece of work in 24 days and D can do it in 16 days, how long will it take for them to complete the work together?

A. 9.6 DAYS
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If a train travels at a speed of 90 km/h, how far will it travel in 3 hours?

C. 270 KM
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If a person walks at a speed of 5 km/h, how long will it take to walk 25 km?

C. 5 HOURS
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics

A and B can complete a work in 24 days and 36 days respectively. If they work together for 8 days, how much work is left?

B. 1/3 OF THE WORK
Posted in:  Time & Work -  Aptitude -  Mathematics