A man is walking through a tunnel and I can't figure out how someone can run the same speed and make it to the end of the tunnel.

Question

A man is walking through a tunnel. When he is exactly 2/5 of the way through the tunnel, he hears a train coming behind him. The train is moving at a steady 60 mph. How could he know what a bind he was in? If he turned around and ran at his top speed towards the train, he would hit the entrance of the train tunnel at the same exact moment the train did. On the other hand, if he kept in his current direction and ran towards the exit(at the same speed), he would reach the exit at the precise moment the train did. a) What's the moral of this story?; b)At what speed can the man run?

Answer 1

a) Don't walk in train tunnels

b) Not fast enough.