Предмет: Математика, автор: Аноним

Для ремонта школы привезли 900 штук белых и красных кирпичей,одинаковых по массе. Масса всех красных кирпичей 1900 кг, а белых 1700 кг. Найди количество красных и белых кирпичей в отдельности.

Ответы

Автор ответа: momot

(1900+1700)/900=4кг - один кирпич,

1900/4=475 шт - красных,

1700/4=425 шт - белых

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