Question

You fly in a helicopter for 20 minutes that goes at a speed of 240 kilometers per hour how far did you go?

Answer 1

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~

Answer 2

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.