25 horses, 5 tracks
You have 25 horses and a track that races 5 at a time, giving only the finishing order (no times). What is the minimum number of races to find the top 3 fastest horses?
Show hints (2)+
- First find the 5 group winners.
- After ranking the winners, prune horses that cannot be top 3.
Answer
Reveal answer →Final answer
7
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Asked at: Jane Street, Citadel, Two Sigma