Mathematics, 15.04.2020 23:43 LindaCat78

A building has 10 doors. 5 of them are two way, 3 are entrance only, 2 are exit only. How many ways can a person enter and exit building

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A building has 10 doors. 5 of them are two way, 3 are entrance only, 2 are exit only. How many ways...

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