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You are given 9 exactly shaped pool balls, but one of them weighs more than the rest. You can use the simplest balance scales to weigh the balls. What is the least amount of tries needed to determine which ball is the heaviest one?
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QA Engineer

Interviewed at Ipreo

3.4
Nov 14, 2017

You are given 9 exactly shaped pool balls, but one of them weighs more than the rest. You can use the simplest balance scales to weigh the balls. What is the least amount of tries needed to determine which ball is the heaviest one?

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