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Time, Distance and Speed

A and B can complete a work in 18 days and 24 days respectively. If they work together for 6 days, how much of the work is left?

C. 1/2
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If a train travels at a speed of 90 km/h, how long will it take to cover a distance of 450 km?

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

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

B. 60 KM/H
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C can complete a work in 10 days, and D can complete the same work in 15 days. If they work together for 5 days, how much work is left?

A. 1/3
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A cyclist covers a distance of 90 km in 4.5 hours. What is the speed of the cyclist in km/h?

C. 25 KM/H
Posted in:  Time, Distance and Speed -  Aptitude -  Mathematics