Mathematics, 06.10.2019 07:30, PNA

Suppose we have four coins and possibly one coin is either too light or too heavy (all four might be true). (a) show how to determine which of the nine possible situations holds with just two weighings, if given one additional coin known to be true. (b) show that two weighings are not sufficient without the extra true coin

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Suppose we have four coins and possibly one coin is either too light or too heavy (all four might be...