How to Grow in 2024

Ben Heim
4 min readJan 2, 2024
Photo by Connor Simonson on Unsplash

In high school, one of my professors gave me a riddle that only one other student had solved in his tenure.

The setup is simple: you have 12 steel balls. They all look the same and feel the same yet one is either heavier or lighter than the rest. Using a balance, how do you use least number of weighings you can do to determine which ball has a different weight and whether it’s lighter or heavier?

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