Question

please anybody tell me fast but properly​

Answer 1

Answer:

15+30+25/10+15+10 = 2m/s

Explanation:

We should calculate using the formula 'm/s'

First we should add the all distance covered (metres). So, A to B+B to C+C to D = 15+30+25 =70 metres

And the total time taken (seconds). So, 10+15+10 =35 seconds

Then divide the metres by seconds. So, it will be 70/35 =2

We got the average speed which is '2 m/s'