SOLUTION: A tunnel has a length of 50 km. A car takes 20 minutes to travel between two ends of the tunnel. What is the average speed of the car. a. 2.5 km/h b. 16.6 km/h c. 150 km/h d.

Algebra ->  Test -> SOLUTION: A tunnel has a length of 50 km. A car takes 20 minutes to travel between two ends of the tunnel. What is the average speed of the car. a. 2.5 km/h b. 16.6 km/h c. 150 km/h d.       Log On


   

Question 1124761: A tunnel has a length of 50 km. A car takes 20 minutes to travel between two ends of the tunnel.
What is the average speed of the car.
a. 2.5 km/h
b. 16.6 km/h
c. 150 km/h
d. 1000 km/h
Answer by ikleyn(52787) About Me  (Show Source):
You can put this solution on YOUR website!
.
To find the average speed, divide the distance by the time.


For your info:  20 minutes = 1%2F3 of an hour,  so the speed is  50%2F%28%281%2F3%29%29 kilometers per hour.

---------------

For the list of longest tunnels in the world,  see this Wikipedia article

https://en.wikipedia.org/wiki/List_of_long_tunnels_by_type