Предмет: Математика, автор: Zenday2013

Для покраски пола можно выбрать один из двух видов краски.Расход одной краски составляет 2 кг на 5м2 а другой 3 кг на 8м2.Какая из этих двух красок выгоднее?

Ответы

Автор ответа: Solнышко
0
2/ 5=  16/40  
3/8 =  15/40
3 кг на 8 м2 - выгодней. Её надо меньше.
Автор ответа: novokchonov
0
А по точнее.
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