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MathNet 2024 — batch of 27 questions Question 8

Math Olympiad Vault · MathNet 2024 — batch of 27 questions

Question 8

Jerry and Neil have a 3-sided die that rolls the numbers $1$, $2$, and $3$, each with probability $\frac{1}{3}$. Jerry rolls first, then Neil rolls the die repeatedly until his number is at least as large as Jerry's. Compute the probability that Neil's final number is $3$.