Quant interview questions
1,322 questions in the style trading and research firms ask, from probability and brainteasers to options, statistics and coding. Every question is open to read; the 50 in the free sample show their worked solutions here.
1,322 questions · page 2 of 34
- What is the smallest group of people that guarantees at least three share a birth month?Counting and combinatorics · Foundation
- Six people sit at a round table.Counting and combinatorics · Foundation
- How many distinct arrangements are there of the letters of MISSISSIPPI?Counting and combinatorics · Foundation
- How many solutions are there to x₁+x₂+x₃ = 10 in positive integers?Counting and combinatorics · Foundation
- A desk can hold positions in any of n instruments and takes k identical lots…Counting and combinatorics · Foundation
- A path from (0,0) to (4,4) takes unit steps right or up.Counting and combinatorics · Foundation
- Choosing a committee, part 1 of 3Counting and combinatorics · Foundation
- Hats at a party, part 1 of 3Counting and combinatorics · Foundation
- Walking a grid, part 1 of 3Counting and combinatorics · Foundation
- Counting poker hands, part 1 of 3Counting and combinatorics · Foundation
- You allocate 10 identical lots across 4 accounts, and an account may receive none.Counting and combinatorics · Applied · Free solution
- How many distinct arrangements are there of the letters in the word BANANA?Counting and combinatorics · Applied
- Five people each take one of five coats at random.Counting and combinatorics · Applied
- A chessboard has two opposite corners removed.Counting and combinatorics · Applied
- A five-card hand is dealt from a standard deck.Counting and combinatorics · Applied
- What does kC(n, k) = nC(n−1, k−1) say, in words?Counting and combinatorics · Applied
- A four-character password is drawn from the 26 lowercase letters, repeats allowed.Counting and combinatorics · Applied
- What does the identity Σ_(i = k)ⁿC(i, k) = C(n+1, k+1) say combinatorially?Counting and combinatorics · Applied
- How many integers from 1 to 1000 are divisible by 2, 3 or 5?Counting and combinatorics · Applied
- How many sequences of four opening and four closing brackets are balanced…Counting and combinatorics · Applied
- How many five-card hands from a standard deck contain exactly one pair, and no better?Counting and combinatorics · Applied
- Six people sit at a round table, rotations counted as the same.Counting and combinatorics · Applied
- How many five-digit numbers have strictly increasing digits from left to right…Counting and combinatorics · Applied
- How many rectangles, of any size, can be traced along the grid lines of an 8 ×…Counting and combinatorics · Applied
- How many squares, of any size, are there on an 8 × 8 chessboard?Counting and combinatorics · Applied
- What is the coefficient of x³y⁵ in the expansion of (2x−y)⁸?Counting and combinatorics · Applied
- Ten people are available.Counting and combinatorics · Applied
- Evaluate the sum of the squares of the fifth row of Pascal’s triangle, Σ_(k = 0)⁵C(5, k)².Counting and combinatorics · Applied
- Six traders drop their badges in a box and each draws one at random.Counting and combinatorics · Applied
- Five distinct orders are routed to three venues, and every venue must receive…Counting and combinatorics · Applied
- How many integers from 1 to 100 share no common factor with 100 other than 1?Counting and combinatorics · Applied
- Five distinct analysts are split into two teams.Counting and combinatorics · Applied
- Eight traders are paired up for a desk-swap day, four pairs in all, and the…Counting and combinatorics · Applied
- Five points are placed anywhere in a 1 × 1 square.Counting and combinatorics · Applied
- Choosing a committee, part 2 of 3Counting and combinatorics · Applied
- Hats at a party, part 2 of 3Counting and combinatorics · Applied
- Walking a grid, part 2 of 3Counting and combinatorics · Applied
- Counting poker hands, part 2 of 3Counting and combinatorics · Applied
- A path from (0,0) to (5,5) takes unit steps right or up.Counting and combinatorics · Advanced
- Candidate A finishes with a votes and candidate B with b < a.Counting and combinatorics · Advanced