SOLUTION: A tunnel has a length of 50 km. A car takes 20 min.to travel between the two ends of the tunnel.. What is the average speed for the journey? A. 2.5 km/h B. 16.6 k /h C. 150 km/h

Algebra ->  Test -> SOLUTION: A tunnel has a length of 50 km. A car takes 20 min.to travel between the two ends of the tunnel.. What is the average speed for the journey? A. 2.5 km/h B. 16.6 k /h C. 150 km/h      Log On


   



Question 1126343: A tunnel has a length of 50 km. A car takes 20 min.to travel between the two ends of the tunnel.. What is the average speed for the journey?
A. 2.5 km/h
B. 16.6 k /h
C. 150 km/h
D. 1000km/h

Answer by FrankM(1040) About Me  (Show Source):
You can put this solution on YOUR website!
50km/20min = x km/hr
50km/20min = x km/60 min
solve by cross multiplying or by observing, just multiply numerator by 3.
Ans 150km/hr