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No: 09       October 27, 2021


TWO FAKE COINS

TWO FAKE COINS

You have a total of 60 coins, two of which are fake. Using a balance scale, what is the minimum number of weighings necessary to identify the two fake coins and determine whether they are heavier or lighter than the genuine ones?

Notes:
-All the coins look identical.
-All the genuine coins have the same weight.
-The two fake coins have the same weight.
-You can compare any number of coins on the balance scale.



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