Question

A greyhound runs 800 metres in 50 seconds. Calculate its average speed in kilometres.

Answer 1

Step-by-step explanation:

We know speed = Distance/ Time

= 800m/50sec

So we get 60m per second

To change 60m per second in kilometer per hour = we multiply 60 by 18/5

= 60×18/5

= 216

So the speed of greyhound in km per hour is 216 km per hour