Top 50

The 50 most frequently asked interview questions

2D Paths I

Brainteasers

Combinatorics

Easy

Couple Handshakes

Brainteasers

Combinatorics

Easy

Rubik's Cube Stickers

Brainteasers

Combinatorics

Easy

Theater Seating

Brainteasers

Easy

Number 50

Brainteasers

Combinatorics

Medium

Picture Day

Brainteasers

Combinatorics

Medium

Safe Cracking

Brainteasers

Combinatorics

Hard

Car Crashes

Probability

Events

Easy

Colorful Socks I

Probability

Combinatorics

Easy

Modified Even Coins

Probability

Conditional Probability

Easy

Poker Hands I

Probability

Combinatorics

Events

Easy

Probability of Unfair Coin I

Probability

Easy

The Last Airbender

Probability

Events

Easy

Birthday Twins II

Probability

Combinatorics

Medium

Cats and Dogs I

Probability

Events

Medium

Chess Tournament I

Probability

Events

Combinatorics

Medium

Comparing Flips II

Probability

Expected Value

Conditional Expectation

Discrete Random Variables

Medium

Dice Order I

Probability

Conditional Probability

Combinatorics

Medium

Odd Coin Flips

Probability

Conditional Probability

Discrete Random Variables

Medium

Forming a Triangle

Probability

Continuous Random Variables

Hard

Free Sundae

Probability

Games

Conditional Probability

Hard

Random Subsets

Probability

Combinatorics

Events

Hard

Soccer Practice

Probability

Conditional Probability

Events

Hard

Basic Dice Game I

Probability

Expected Value

Conditional Expectation

Easy

Dangerous Doubles

Probability

Expected Value

Easy

Magic Doors

Probability

Conditional Probability

Easy

Better in Red I

Probability

Expected Value

Medium

Collecting Toys I

Probability

Expected Value

Medium

First Ace

Probability

Expected Value

Medium

Heads and Tails I

Probability

Expected Value

Medium

Peeled Dice

Probability

Conditional Expectation

Medium

Repetitious Game II

Probability

Expected Value

Medium

Six Card Sum

Probability

Games

Medium

Unfair Roulette

Probability

Conditional Probability

Medium

Expected Chord Length

Probability

Continuous Random Variables

Expected Value

Hard

Marble Runs

Probability

Expected Value

Hard

Ramen Bowl

Probability

Expected Value

Hard

Sum Exceedance I

Probability

Expected Value

Continuous Random Variables

Hard

About

50 of the most asked quantitative interview questions asked across Wall Street. These are the classics.