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Three Weighty Coins

The 3 Coins Puzzle

You have 3 coins. Two of the coins are of the same weight, and one coin is slightly heavier or lighter than the others (you don’t know which). You have a balance scale.

Question:
How can you identify the odd (heavier or lighter) coin using just one weighing?

Hint:
Think about how you can divide the coins and use the scale to get a definitive answer.

Click here for solution.