Question

The distance between 2 trees is 300 meters. It will take a bird 30 seconds to fly between these 2 trees. How fast is the bird in kilometer per hour?

Answer 1

In 30 seconds a bird flys between these 2 trees. And the distance between these 2 trees is 300 meters. 

=> A minute the bird flys 600 meters.

=> 60 minutes it flys 36000 meters.

But 60 minutes is an hour and 36000 meters is 36 km

=> The speed of the bird is 36km/hour or the bird flys 36km per hour

Answer 2

bạn Kuroba Kaito ơi, mk tưởng phải là flies chứ? sao lại là fly?