Предмет: Информатика, автор: grishakalmikov

в 7б классе 15 человек. в секцию плавания ходят 5 человек, в секцию бега 13 человек, в секцию борьбы 3 человек, причем по 2 человека посещают секцию плавания и бега, секцию плаванья и секцию борьбы, секцию борьбы и секцию бега, сколько человек посещают все три секции?

Ответы

Автор ответа: horsetvkck

1

Ответ:

4

Объяснение:

4 на біг

4 на плавання

4 на боротьбу

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