A car driver travels from the plains to the hill station which are350 km a part at an average speed ...........

Quantitative Aptitude ( CCS) Time & distance

A car driver travels from the plains to the hill station, which are350 km a part at an average speed of 30 km/h. In the return trip he covers the same distance at an average speed of 20 km/h the car. The average speed of the car over the entire distance is

20kmph