Respuesta :

First, do 36/12 to find out how many laps you can run in a certain amount of minutes. It is 1 laps per 3 minuted. Then,  do 3 times 20 because 60 minutes is in an hour. Then, 1 times 20 is 20. 20 laps is the correct answer.
Gracetheunicorn
First divide 36 by 12
Then you should get 3
So now you know 3 laps in 1 minute

Nom times 60(1 hour)
By 3(laps per minute)

Now you should get 180

So now you know 180 laps per hour