Medium · Brain Teasers & Logic · Numerical · ~8 min · #97
Fastest Three of 25 Horses
Real interview · Goldman Sachs
You have 25 horses and no stopwatch. A race holds 5 horses and shows only their finishing order. What is the minimum number of races needed to identify the fastest 3 horses?
Hints · 0 of 3 shown
Worked solution
Give the problem an honest attempt first, then reveal the full explanation.
Reported in interviews
- Goldman SachsGlassdoor interview question
Candidate-reported and unverified; the firm may phrase it differently or no longer ask it. The wording here is our own paraphrase, and the solution was written and checked independently of any answers posted at the source.
Related questions
Concepts
Elimination argumentsPartial orders
Relevant for
Quant TraderQuant DeveloperQuant Researcher