A train travels a distance of 300km at a constant speed. If the speed of the train is increased by 5km,the journey would have taken 2 hoursless.Find the original speed of the train.

By increasing the speed of a bus by 10 km//hr , it takes one and half hours less to covera journey of 450km. Find the original speed of the bus.

Rahim travelled 350 kilometres in a train and 150 kilometres in a bus. The average speed of the 'train was 70 km / h . The bus trip lasted 5 hours. What is the average speed of the entire trip?

A train travels at an average speed of 36 km / h . How far will it go in 3 minutes?

A 180 metres long train takes 9 seconds to pass a verticle pole. What is the average speed of the train in kilometre per hour?

Suppose two Cars start together in the same direction from the same place. The first goes with uniform speed of 10km//hr. The second goes at a speed of 8km//hr in the first hour and increases the speed by 1//2km each succeeding hour.Find the distance travelled by the first car in 'n' hours.