Bob is having a nice camping/fishing trip along a river. He leaves his campsite early in the morning, and gets on his boat, heading full throttle upstream.

After going for exactly one mile, his hat flips off of his head, and starts floating downstream. Bob doesn't realize that his hat has fallen off for five minutes, but then he notices that it's missing, and turns full throttle downstream.

He finally catches the hat at exactly the same spot as he camped that morning. The question is, how fast was the water traveling?

(Assume that he travels the same speed the entire time and that there is no turn around time.)

(In reply to I remember this one by Brian Smith)

Hmmmm... doing some math, I have found that my answer of square root of 37 was obviously not correct... I guess I'll have to check my calculus. However, just to be anal, the boat speed does have to be faster than the current....

Posted by Ryan on 2003-05-06 18:57:16