Respuesta :

20 minutes= 1/3 hour

1/3 hour* (240 km/ 1 hour)= 80 km.
(Note that the unit cancels out so you get the answer)

The final answer is 80 km~
240 per hour

Set up a proportion.

240/60 = x/20

*We made sure all units are the same*

240*20 = 4800

4800/60 = x

x = 80

Answer: We travel 80 kilometers.