Medium · Market Making & Trading Games · Numerical · ~5 min · #114
A Guaranteed Bet on Three Horses
Real interview · Susquehanna (SIG)
Three horses race. Each dollar you stake pays back 2, 4 or 6 dollars in total if horse A, B or C wins respectively, and nothing otherwise. Exactly one horse wins.
If you split your stake to receive the same amount whichever horse wins, how much do you receive per dollar staked?
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Worked solution
Give the problem an honest attempt first, then reveal the full explanation.
Reported in interviews
- Susquehanna (SIG)Glassdoor interview question
Reported as whether a guaranteed strategy exists. We read the payouts as including the stake.
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.
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