мастер сделать 120 деталей За 8 часов но когда он работает вместе со своим учеником то столько

мастер сделать 120 деталей За 8 часов но когда он работает вместе со своим учеником то столько же деталей они успевают сделать за 5 часов Сколько деталей в час делает ученик
- Предмет:
  Математика
- Автор:
  kyra71
- 6 лет назад

Ответы 2

120:8=15дет. в час мастер120:5=24 дет. в час вместе24-15=9 дет. в час ученик
- Автор:
  ajax
- 6 лет назад
- 0
1) 120 : 8 = 15(дет/ч) - выработка мастера2) 120 : 5 = 24(дет/ч) - совместная выработка мастера и ученика)3) 24 - 15 = 9(дет/ч)Ответ: 9деталей в час делает ученик.
- Автор:
  xena8eih
- 6 лет назад
- 0
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