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Problem 18 (2016 AMC 8)

AMC 8Easy

From module Word Problems

Problem

In an All-Area track meet, 216216 sprinters enter a 100100-meter dash competition. The track has 66 lanes, so only 66 sprinters can compete at a time. At the end of each race, the five non-winners are eliminated, and the winner will compete again in a later race. How many races are needed to determine the champion sprinter?

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