Remember the Chinese math problem?
The solution has been published on the BBC site, and while I never did take the time out to try and solve it, the final solution is a lot simpler than it looked. Reminds me of one of my lecturers at Obafemi Awolowo University, Dr. Adeniran, who designed problems to look really hard, but if you were not fazed, and took your time to look at it, and understood the underlying principles, then you could solve it.
Anyway, enough of my rant, here is the solution:
Check out the story on BBC News here.