Предмет: Математика, автор: Natali72

Саша выбрал в библиотеке 5 книг,но одновременно можно взять только две книги.Сколько вариантов выбора книг из пяти есть у Саши? Подсказка: дайте книгам номера 1,2,3,4 и 5.

Ответы

Автор ответа: DominikUser3

0

варианты
1,2 2,3 3,4 4,5
1,3 2,4 3,5
1,4 2,5
1,5

итого 10 вариантов

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