In the morning,Aasha biked from home to school at an average speed of x kilometres per hour.In the afternoon,having lent her bike to a friend,Aasha walked back home along the same route at an average speed of 3 kilometre per hour.Her average speed for the round trip was 5 kilometre per hour. What is the value of x?

A train travels at an average speed of 50 miles per hour. It travels for 2 1/2 hours.

A car covers a distance in 40 minutes with an average speed of 60 km per hour. The average speed to cover the same distance in 30 minutes is

The average speed of a person in driving to school is 30 km//h . On the return trip along the same rout, the average speed is 25 km//h . What is the average speed for the round trip to the school ?

A car has an average speed of 60 km per hour while going fi'om Delhi to Agra and has an average speed of y km per hour while returning to Delhi from Agra (by travelling the same distance). If the average speed of the car for the whole journey is 48 km per hour, then what is the value of y ?

An automobile driver travels from a plain to a hil station 120 km away at an average speed of 30 km per hour. He then makes the return trip at an average speed 25 km per hour. He covers another 120 km on the plain at an average speed of 50 km per hour. His average speed (in km/hr) over the entire distance of 360 km will be

A train travels first 300 km at an average rate of 30 km per hour and further travels the same distance at an average rate of 60 km per hour, then the average speed over the whole distance is

A car is travelling at an average speed of 60 km per hour. How much distance will it cover in 1 hour 12 minutes?