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Time, Distance and Speed

If A can do a piece of work in 15 days and B can do it in 10 days, how many days will they take to complete the work together?

B. 7.5 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

C can finish a work in 20 days, while D can finish the same work in 30 days. If they work together for 10 days, how much of the work is left?

A. 1/3
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A cyclist covers a distance of 120 km in 4 hours. What is the speed of the cyclist in km/h?

B. 30 KM/H
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics

If A can do a piece of work in 12 days and B can do it in 18 days, how long will it take for both A and B to complete the work together?

A. 7.2 DAYS
Posted in:  Time & Work -  Aptitude -  Mathematics

A car travels 150 km in 3 hours. What is its average speed?

B. 60 KM/H
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics