Posted by Micka on .
A train that is 1 mile long starts through a tunnel that is also 1 mile long. The train is traveling 15 miles per hour. How long does it take for the train to get completely out of the tunnel?

Math 
PsyDAG,
It will be the time from the beginning for traveling two miles, one mile to get completely in the tunnel and another to get completely out.
2/15 =