Question

A student while going to school in a school bus,
observes the average speed of the bus to be
20 km/h. On his return trip along the same way,
the average speed is 30 km/h. What is the average
speed of the bus in the entire journey?​

Answer 1

Answer:

24 m/s

Explanation:

average velocity = 2 ×V1 × V2 /V1 +V2

=2×20×30/20+30.

= 2×20×30/50 = 24m/s