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You are given a 6 sided die with the sides (1,2,3,1,2,3) . You roll the die and on each roll get n coins equal to the number you have rolled. The game ends when you roll the same number twice in a row. What is the expected value of the game?
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Quant Intern

Interviewed at Akuna

3.7★
Nov 3, 2023

You are given a 6 sided die with the sides (1,2,3,1,2,3) . You roll the die and on each roll get n coins equal to the number you have rolled. The game ends when you roll the same number twice in a row. What is the expected value of the game?

They asked me a probability question involving the chance of two people meeting—kind of a brainteaser—and a Leetcode-style array problem that involved distributing coins efficiently. It was a mix of math intuition and coding logic.
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Quant Strategist

Interviewed at Goldman Sachs

3.7★
Mar 31, 2025

They asked me a probability question involving the chance of two people meeting—kind of a brainteaser—and a Leetcode-style array problem that involved distributing coins efficiently. It was a mix of math intuition and coding logic.

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