Jane StreetInternInternQuestion #498
Suppose we play a game with a die where we roll and sum our rolls. We can stop at any time, and the sum is our score. However, if our sum is ever a multiple of 10, our score becomes zero and our game is over. What strategy will yield the greatest expected score? What about if the target multiple is a value other than 10?
Unlock the Full Solution
Enter your email to get the detailed step-by-step solution to this Jane Street interview question, plus access to free interview prep resources.
We'll also send you a free HFT mock interview video.
More Jane Street Intern Questions
Design a real-time system to process millions of trades per second. How would you ensure low latency, fault tolerance, and exactly-once processing?If I roll two dice, what is the expected value of the product of the two faces?Implement the game Tetris in 30 minutes.What is the optimal strategy for winning in rock-paper-scissors if your opponent can only choose between rock and paper?In n coin tosses, what is the probability that the number of heads is even? Prove your result rigorously.
Get All 664+ Jane Street Questions with Solutions
Plus 16+ hours of video lectures, resume tailoring, and 1:1 mentorship from quants.
Schedule a Call