Один дежурный может убрать кабинет за 30 мин, а второй- 45 мин. За сколько минут они уберут кабинет, работая вместе - №27708961

Один дежурный может убрать кабинет за 30 мин, а второй- 45 мин. За сколько минут они уберут кабинет, работая вместе
- Предмет:
  Математика
- Автор:
  ciara
- 6 лет назад

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ответ этого задания: 3,25
- Автор:
  tuxmbkv
- 6 лет назад
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