Предмет: Математика, автор: modestyz

В соревнованиях по плаванию участвуют две одинаковые по составу команды спортсменов. В каждой команде по 7 юношей и 21 девушке. Из каждой команды выступило по одному участнику. Найти вероятность того, что после этого состав команд останется одинаковым.

Ответы

Автор ответа: Кристалл112

Удачных вариантов из 3.22.Вероятность= 3/22

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