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Mathematics, 18.01.2021 22:00 allyfurby
An elevator starts at the basement with 8 people (not including the elevator operator) and discharges them all by the time it reaches the top floor, number 6. In how many ways could the operator have perceived the people leaving the elevator if all people look alike to him
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An elevator starts at the basement with 8 people (not including the elevator operator) and discharge...
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