A man covers half of his journey at a speed of 6 km/hr and the remaining half at a speed of 3 km/hr. His average speed is:

If 30% of the distance is covered by A at 20 km/h and the remaining distance is covered at 70 km/h, then the average speed of A is :

Half distance at 10 m/s and remaining half at 40 m/s. Average speed?

A vehicle covers half the distance with uniform speed v1 and the other half with uniform speed v2. The average speed of the vehicle is

Without stoppages, a train travels at an average speed of 60 km/h and with stoppages it covers the same distance at an average speed of 48 km/h. How many minutes per hour does the train stop?

A man walks at an average speed of 3 km/hr from his home and reaches office 40 minutes early. If he walks at an average speed of 2 km/hr, he would reach office 40 minutes late. What is the distance b…