Предмет: Математика, автор: lizagrog

Заготовленных материалов хватит для работы двух цехов в течение 10 дней или одного первого цеха-в течение 15 дней.На сколько дней хватило бы этих материалов для работы только второго цеха? Пожалуйста с условием.

Ответы

Автор ответа: egorkaivanov59

Ответ:

Пошаговое объяснение

скорость выработки в первом цеху 1/15 в день, в обоих при совместной работе 1/10 в день.

Вычтем из совместной скорости расхода скорость расхода первого цеха 1/10 - 1/15 = 1/30 (в день) . Значит второй цех израсходует всё за 30 дней

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