# Math problem?

You are given ten stacks of silver dollars. Each stack contains ten coins. Nine of the stacks are completely genuine and one is completely counterfeit. You are told that a genuine silver dollar weighs 26.7 grams. You are given a scale and are allowed to weigh any number of coins, but you are allowed only one weighing! How many coins should you wwigh to eb sure of identifying the counterfeit stack?

Can someone help me solve this?

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