A friend of mine sent me this little puzzle, which, truth be told, did not take me long to solve.
Since today shapes up as another really busy day at work, I decided to take an easy route out of blogging and post the puzzle here. Anyone who cares to post the solution – with an explanation – in the comments thread is afforded a humongous doze of satisfaction (but no other valuable prizes). Failing anyone who has an intellect as formidable as mine, I’ll post the solution comment in a couple of days.
- There are 25 horses and a 5-track racing ring so the horses can run only 5 at a time.
- You don’t have any timers, you can just watch the finish line and record the order in which the horses arrive.
- Assume there are no ties.
- Also assume that the each horse’s speed always stays the same, no matter how many times you run them.
PROBLEM: What is the minimal number of runs you need in order to pick 3 fastest horses?