Мешка овса хватает лошади на неделю, козе на две недели, овце на четыре.За какое время, животные вместе сьедят такой же мешок овса?

Мешка овса хватает лошади на неделю, козе на две недели, овце на четыре.За какое время, животные вместе сьедят такой же мешок овса?
- Предмет:
  Математика
- Автор:
  claudio
- 5 лет назад

Ответы 2

Спасибо тебе огромное!
- Автор:
  bright
- 5 лет назад
- 0
Лошадь съест мешок овса за 7 дней, коза - за 14 дней, овца за 28 дней.За 1 день лошадь съест 1\7 часть мешка, коза - 1\14, овца - 1\28.Вместе за 1 день они съедят 1\7 + 1\14 + 1\28 = 1\4 часть мешка.Мешок они съедят за 1 : 1\4 = 4 дня.Ответ: за 4 дня.
- Автор:
  darrylhull
- 5 лет назад
- 0
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