Question

a boy takes 300 seconds to walk 450m what is his average speed ?​

Answer 1

Answer:

The boy walked total distance

= (30+30) meters = 60 meters

And total time was taken by him

= (1+1.5) minutes

=2.5 minutes = (2.5 x 60) Seconds = 150Seconds

So, the average speed of the boy was

= (60/150) meter/second

=0.4 meter/second

Answer : The average speed = 0.4 meter/second

Answer 2

Answer:

average is 1.5m per second