Lead Program Manager Interview Questions

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There are 9 identical looking balls, but one ball is slightly heavier than the others. If you have one scale, what is the least number of measurements one would need to identify for sure, which ball is the heavier one?
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Summer Explore Microsoft Program

Interviewed at Microsoft

4
Apr 17, 2012

There are 9 identical looking balls, but one ball is slightly heavier than the others. If you have one scale, what is the least number of measurements one would need to identify for sure, which ball is the heavier one?

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