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A person has five coins. If he knows for certain that– 1. Coin no.1 is genuine; 2. One of the remaining four coins is counterfeit and its weight is different from the others. then what is the minimum number of weighings which will enable him to find out which coin is counterfeit and whether it is heavier or lighter than the others ?

Correct Answer: 2

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Reasoning MCQ: A person has five coins. If he knows for certain that– 1. Coin no.1 is genuine; 2. One of the remaining four coins is counterfeit and its weight is different from the others. then what is the minimum number of weighings which will enable him to find out which coin is counterfeit and whether it is heavier or lighter than the others ? | Extra Education