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.

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.

Babu went to Mananthavady by bus to see his friend. The average speed of the bus was 40 (km) / h . He came back in' a car, at an average speed of 60 (km) / h . What is the average speed of the entire trip, if we take the one way distance as 240 km ?

Babu went to Mananthavady by bus to see his friend. The average speed of the bus was 40 (km) / h . He came back in' a car, at an average speed of 60 (km) / h . What is the average speed of the entire trip?

If the average speed of a bus is 52 ""km / h . How much does it travel in 6 hours?

Shyama's exam starts at 2 o' clock. To reach the place, she hás to travel 50 kilometres by bus and 175 kilometres by train: Average speed of bus journey is 20 ~km / h and average speed of train journey is 50 ~km / h . To reach there 1 hour, before the exam, when should Shyama leave home?

A man walks on a straight road from his home to a market 2.5 km away with a speed of 5 kmph. Finding market closed,he instantly turns and walks back home with a speed of 7.5 kmph.Find out the average speed and magnitude of average velocity.(Consider the whole journey-from home to market and back from market to home)

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.