Предмет: Математика, автор: Mandarinka20030

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

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Автор ответа: НЕУДЕРЖИМАЯ

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1) 1900+1700=3600 кг всего2) 3600:900=4 кг- весит один кирпич3) 1900:4=475-красных кирпичей4) 1700:4=425-белых кирпичей

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