The Rings
Can you tell bronze from gold?
Quick! How can you spot the bronze ring in just three weighings on a balance scale? Luckily for him, Mr. Bolzano is a mathematician and knows exactly how to do it! But how does he do it?
You can use a real scale to solve this puzzle, or tokens or objects on which you write values. Get ready to have fun!
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Explanations and Resources
This activity comes with an explanatory sheet that presents the answer and the mathematical concepts used.
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