Combinatorics Questions for Prop Trading Interviews
A prop trading round does not test combinatorics the way a textbook does. This set is the overlap - the combinatorics questions that actually turn up in this format.
15 questions, 7 of them free to practise right now. The split is 5 easy, 9 medium, 1 hard.
- A majority of onesEasyCombinatoricsView →
- A perfect-power dice sumEasyProbabilityCombinatoricsView →
- A repeated digit in the PINEasyProbabilityCombinatoricsView →
- Divisible by 2 or 3EasyCombinatoricsView →
- Three-one strings with matching endpointsEasyCombinatoricsView →
- Full housesMediumProbabilityCombinatoricsView →
- Tiling a stripMediumCombinatoricsView →
- A family clustered at a round tableMediumCombinatorics Premium
- Derangements of four itemsMediumCombinatorics Premium
- Five distinct ranksMediumProbabilityCombinatorics Premium
- Inversions in a shuffleMediumCombinatoricsExpected Value Premium
- Last two digits of a powerMediumCombinatoricsBrainteasers Premium
- Position of the first spadeMediumCombinatoricsExpected Value Premium
- Spaced onesMediumCombinatorics Premium
- Defective stack of coinsHardCombinatoricsBrainteasers Premium
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