Problem
You have 25 horses and a track that can race at most 5 horses at a time. You want to find the top 3 fastest horses. Assuming each horse always runs at its constant characteristic speed and you do not have a stopwatch, what is the minimum number of races needed to determine the top 3?
Practicing as: Data Analyst interview at Jane StreetHi, I'll play your Jane Street interviewer for the Data Analyst role. Candidates describe these interviews as mostly positive and hard, so expect me to be friendly but thorough. Take your time with the question above and answer like we're in the room.
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