# Greenwicher's WikiA Practical Guide to Quantitative Finance Interviews 2017-07-23

[Last Update: Jul 23, 2017]

## Chapter 1 General Principles

- Build a broad knowledge base
- Practice your interview skills
- Listen carefully
- Speak your mind
- Make reasonable assumptions

## Chapter 2 Brain Teasers

### 2.1 Problem Simplification

- Screwy pirates
- Tiger and sheep

### 2.2 Logic Reasoning

- River crossing
- Birthday problem
- Card game
- Burning ropes
- Defective ball
- Trailing zeros
- Horse race
- Infinite sequence

### 2.3 Thinking Out of the Box

- Box packing
- Calendar cubes
- Door to offer
- Message delivery
- Last ball
- Light switches
- Quant salary

### 2.4 Application of Symmetry

- Coin piles
- Mislabeled bags

### 2.5 Series Summation

- Clock pieces
- Missing integers
- Countefeit coins I
- Glass balls

### 2.6 The Pigeon Hole Principle

- Matching socks
- Handshakes
- Have we met before?
- Ants on a square
- Counterfeit coins II

### 2.7 Modular Arithmetic

- Prisoner problem
- Division by 9
- Chameleon colors

### 2.8 Math Induction

- Coin split problem
- Chocolate bar problem
- Race track

### 2.9 Proof by Contradiction

- Irrational number
- Rainbow hats