Question

A person covers a distance of first 120m at a speed of 4m/sec , next 120m at a speed of 5m/sec and final distance of 120m at 6m/sec, then during the complete journey, find his average speed in km/ hour​

Answer 1

Answer:

see the image

hope it helps you ☺️

Answer 2

Answer:

average distance= sum of values/no. of values

4+5+6/3

=15/3

=5m/sec

5m/sec =1080km/hr

average speed of car is 1080km/hr