Hudson River Trading

Interview Question

Algorithm Development Internship Interview
Hudson River Trading

You roll a six-sided fair die repeatedly until you obtain each face at least once. On average, how many times do you need to roll the die?

Unlock the Full Solution

Enter your email to get instant access to the complete solution, explanation, and similar practice problems.

Insights on 100+ quant firms, understand where to apply, and maximize your chances.

Get the official 2025 QB Quant Firm Tier List

Check your email inbox — you should get the interview in 1-2 minutes!