Предмет: Математика, автор: рспреран

билеотеке нужно переплести 4500 кениг одна мастер ская может переплести эти книги за 30 дней а другая за 45.За сколько дней могут выполнить заказ обе эти мастер ские работая одновременно

Ответы

Автор ответа: stellasmile

Я ДУМАЮ ЧТО ТАКОЕ РЕШЕНИЕ !должно правильно быть ))
Рада была помочь :3

1)4500:30=150(книг)-за 1 день переплетает 1-я мастерская
2)4500:45=100(книг)-за один день переплетает 2-я мастерская
3)150+100=250(книг)-переплетают в день обе мастерские
4)4500:250=18(дней)-потребуется двум мастерским чтобы переплести все книги

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