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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