[" A train has a speed of "60km/h" .for the first one hour and "40km/h" for the "],[" next half hour.Its average speed in "km/h" is "]

A train has a speed of 60 km//h for the first one hour and 40 k/h for the next half hour. Its average speed in km//h is

A bus travelling the first one third distance at a speed of 10 km/h, the next one third at 20 km/h and the last one third at 60 km/h. The average speed (in km /h) of the bus is

A train travels with speed 40 km h^(-1) for first 15 minutes and then 60 km h for next 15 minutes, hence its average speed during this time interval is 50 km h ^(-1).

A train travels at a speed of 60 km/h for 0.52 h, at 30 km/h for the next 0.24 h and then at 70 km/h for the next 0.71 h. What is the average speed of the train ?

A train travels at a speed of 60 km/h for 0.52 h, at 30 km/h for the next 0.24 h and then at 70 km/h for the next 0.71 h. What is the average speed of the train ?

A bus travelled the first one-third distance at a speed of 10 km//h , the next one-third at 20 km//h and the last one-third at 60 km//h . The average speed of the bus is

A bus travelled the first one-third distance at a speed of 10 km//h , the next one-third at 20 km//h and the last one-third at 60 km//h . The average speed of the bus is

A car travels at a speed of 80 km/h during the first half of its running time and at 40 km/h during the other half. Find the average speed of the car. (60 km/h)

A car travels at a speed of 80 km/h during the first half of its running time and at 40 km/h during the other half. Find the average speed of the car. (60 km/h) ( AS_(7))

A car travels at a speed of 80 km/h during the first half of its running time and at 40 km/h during the other half. Find the average speed of the car. (60 km/h) ( AS_(7))