Find the time required to cover a distance of 250 km at a speed of 20km per hour.

A train is moving at a uniform speed of 75 km/hour : Find the time required to cover a distance of 250 km.

A train is moving at speed of 78 km/hr. (i) How far will it travel in 20 minutes (ii) Find the time required to cover a distance of 240 km.

Represent the following situations in the form of quadratic equations: A train travels a distance of 480 km at a uniform speed. If the speed had been 8km/h less, then it would have taken 3 hours more to cover the same distance. We need to find the speed of the train.

An aeroplane leaves an airport and flies due north at a speed of 1000km per hour. At the same time, another aeroplane leaves the same airport and flies due west at a speed of 1200 km per hour. How far apart will be the two planes after 1 1/2 hours ?

A train covers a distance of 90 km at a uniform speed. Had the speed be 15 km/ hour more, it would have taken half an hour less for the journey. Find the original speed of the train.

A bus travels a distance of 120km with a speed of 40km/h and returns with a speed of 30km/h .Calculate the average speed for the entire journey.