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.
245 questions · page 1 of 7 · Clear filters
- Compute 48 × 52 in your head.Mental maths and numerical fluency · Foundation · Free solution
- Two numbers sit just below a hundred. Compute 97 × 96.Mental maths and numerical fluency · Foundation · Free solution
- Square 65 in your head.Mental maths and numerical fluency · Foundation
- Compute 125 × 48.Mental maths and numerical fluency · Foundation
- Write 1/7 as a decimal to four places.Mental maths and numerical fluency · Foundation
- Write 3/16 as a decimal.Mental maths and numerical fluency · Foundation
- A stock falls 20%. By what percentage must it rise to return to its starting price?Mental maths and numerical fluency · Foundation
- A position gains 10% one day and loses 10% the next.Mental maths and numerical fluency · Foundation
- You have a 30% weight at a price of 102 and a 70% weight at 98.Mental maths and numerical fluency · Foundation
- A game pays $60 with probability 1/3 and costs you $15 otherwise.Mental maths and numerical fluency · Foundation
- A bookmaker offers odds of 3 to 1 against. What probability does that imply?Mental maths and numerical fluency · Foundation
- A daily return series has a standard deviation of 1.5%.Mental maths and numerical fluency · Foundation
- Compute 5/8−1/3 as a decimal to four places.Mental maths and numerical fluency · Foundation
- What is the sum of the first 20 odd numbers, 1+3+5+⋯+39?Mental maths and numerical fluency · Foundation
- Estimate √50 to two decimal places.Mental maths and numerical fluency · Applied
- Without writing anything down, multiply 17 by 23.Mental maths and numerical fluency · Applied
- Compute 999².Mental maths and numerical fluency · Applied
- Compute 84÷0.035.Mental maths and numerical fluency · Applied
- A fee is 35 basis points of notional. On $2,000,000, how many dollars is that?Mental maths and numerical fluency · Applied
- Estimate ln(1.05) to three decimal places.Mental maths and numerical fluency · Applied
- Estimate 1.03¹⁰ to two decimal places.Mental maths and numerical fluency · Applied
- Estimate 1/1.08 to four decimal places.Mental maths and numerical fluency · Applied
- An interest rate rises from 4% to 5%.Mental maths and numerical fluency · Applied
- What is e^(0.1) to four decimal places?Mental maths and numerical fluency · Applied
- How many ways can a committee of 3 be chosen from 8 people?Counting and combinatorics · Foundation · Free solution
- A four-digit PIN allows repeated digits. How many are there?Counting and combinatorics · Foundation
- How many solutions are there to x₁+x₂+x₃ = 10 in positive integers?Counting and combinatorics · Foundation
- 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
- 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 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
- What is the coefficient of x³y⁵ in the expansion of (2x−y)⁸?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 analysts are split into two teams.Counting and combinatorics · Applied