Create a free account!

When you create an account, we'll save your progress. Plus, you'll have access to some cool tools, like reports, assignments, gradebook, and awards.

A train started its journey at 9:00. Its average speed between 9:00 and 13:00 was 80 km/h. It travelled 1/5 of its journey by 13:00. If the train was required to arrive at the destination at 21:00, what average speed must the train travel at for the rest of the journey?

  km/h

Correct!