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?

Average speed for half distance at 20 m/s and half at 30 m/s

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

The distance between Delhi and Agra is 200 km. Suppose you are travelling from Delhi to Agra by a car. If you can maintain an average speed of 90 km/hr for 120 km and 40 km/hr for the remaining dista…

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…