A boy rides his bicycle 10 km at an average speed of 12 km/hr and travells 12 km at an average speed of 10 km/hr. His av…

A man completed a certain journey by a car. If he covered 30% of the distance at the speed of 20 km/hr, 60% of the dista…

A train without stopping travels 60 km/h and with stoppage 40 km/h. What is the time taken for stoppage on a route 300 k…

A man cycles at the speed of 8 km/hr and reaches office at 11 am and when he cycles at the speed of 12 km/hr, he reaches…

A car travels 50% faster than a bike. Both start at the same time from A to B. The car reaches 25 minutes earlier than t…

A coolie standing on a railway platform observe that a train going in one direction takes 4 second to pass him. Another …

A train is 125 m long. If the train takes 30 sec to cross a tree by the railway line, then the speed of the train is :

A man can walk uphill at the rate of $$2\frac{1}{2}$$ km/hr and downhill at the rate of $$3\frac{1}{4}$$ km/hr. If the t…