An object covers a distance of 10 km in 15 minutes. Calculate its speed in km/ min. and km/h.

Rita takes 20 minutes to cover a distance of 3.2 kilometres on a bicycle . Calculate her speed in units of kilometer/min and metre/min.

A car moves with a speed of 40 km/h for 15 minutes and then with a speed of 60 km/h for the next 15 minutes. The total distance covered by the car is:

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 car covers a distance of 89.1 km in 2.2 hours. What is the average distance covered by it in 1 hour?

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.