The Rings
Can you tell bronze from gold?
Quick! Time is money! How can you identify the bronze ring in only three weighings? Thankfully, Mr. Bolzano is a mathematician and he knows what to do! 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!
- This puzzle can be difficult and requires a fairly unusual reasoning.
- Planning notes
- Do this activity with your class!
- Planning notes