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Time, Distance and Speed

If a work can be done by 8 men in 12 days, how many men are required to complete the same work in 6 days?

B. 16 MEN
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If A can do a piece of work in 12 days and B can do it in 18 days, how much time will they take to complete the work together?

A. 7.2 DAYS
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A can complete a work in 10 days, and B can complete the same work in 15 days. How many days will they take to complete the work together?

B. 8 DAYS
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A can do a work in 15 days, B can do it in 20 days, and C can do it in 30 days. How long will they take to complete the work together?

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

A vehicle travels 240 km in 3 hours and then 180 km in 2 hours. What is the average speed for the entire journey?

C. 72 KM/H
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics