Time and Speed - Train and Boat

A motor-cycle covers 40 Km with a speed of 20 km/hr. Find the speed of the motor- cycle for the next 40 km journey so that the average speed of the whole journey will be 30 km/hr.

A boat takes 4 hours to cover a certain distance running downstream, while running upstream it requires 8 hours 48 minutes to cover the same distance. Find the ratio between the speed of the current and the speed of the boat?

How many seconds will a 500 metre long train take to cross a man walking with a speed fo 3 km/ hr in the direction of the moving train if the speed of the train is 63 km/hr?

A man's speed with the current of a river is 15 km/hr and the speed of the current is 2.5 km/hr. What is the man's speed against the current?

In still water, a boat can travel at 5 km/hr. It takes 1 hour to row to a place and come back. If the velocity of the stream is 1 km/hr, how far is the place?

An inspector notices a thief from a distance of 200 meters after this thief starts running and the inspector chases him. The inspector and the thief run at the speed of 11 km/hr and 10 km/hr respectively. The distance between them after 6 minutes is?

The respective ratio between the speed of a car, a train, and a bus is 5 : 9 : 4. The average speed of the car, bus and train is 72 km/hr together. What is the average speed of the car and the train together?

A train, 150 meter long and running at a speed of 60 km per hour, takes 30 seconds to cross a bridge. What is the length (in meter) of the bridge?

A man walking at the rate of 4 km/hr crosses a bridge in 15 minutes. The length of the bridge (in meters) is-

A train starts from city Y at 2 pm and travels towards city X at 75 km/hr. Another train starts from city X at 1 pm and travels towards Y at 60 km/hr. If the distance between these two cities is 330km then at what time will they meet?

A train takes 50 sec to cross a boy travelling at 6 km/h in the opposite direction to it. Another train which is half as long as and 25% faster take 30 sec to cross the stationary pole. Find the approximate length of the second train.

A car is driven at the speed of 100 km/hr and stops for 10 minutes at the end of every 150 km. To cover a distance of 1000 km, it will take.

A boat runs at 22 km hour along the stream and 10 km per hour against the stream. Find the ratio of the speed of the boat in still water to that of the speed of the stream.

A train 240m long passes a pole in 24 seconds. How long will is take to pass a platform 650m long?

At 8 am two trains started traveling towards each other from stations 300 Km apart. They passed each other at 12 noon. the same day. If the average speed of the faster train was 9 km more than that of the slower train, then what is the speed of the faster train in km/hr?

A man can row 6 km/hr in still water. It the speed of the current is 2 km/hr, it takes 3 hrs more in upstream than in the downstream for the same distance. The distance is _____

The speed of a boat in still water in 15 km/hr and the rate of current is 3 km/hr. The distance travelled downstream in 12 minutes is:

A and B go cycling in the same direction with speeds of 6 km/hr and 12 km/hr. A car from behind passes them in 9 and 10 seconds respectively. What is the speed of the car?

A driver of an auto rickshaw sees a lorry 60 meters ahead of him. After 30 seconds the lorry is 90 meters behind. If the speed of the auto rickshaw is 38 km/h, then what is the speed of the lorry?

The ratio of the speed of boat in still water to the speed of stream is 16 : 5. A boat goes 16.5 km in 45 minute upstream, find the time taken by boat to cover the distance of 17.5 km downstream.