Mathematics, 13.02.2021 16:00, smilingntn33p7pqpp

3. In a particular type of steel, the ratio of iron and carbon is 49: 1. Let's calculat to find, in 250 quintal of such steel how much iron is there.

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3. In a particular type of steel, the ratio of iron and carbon is 49: 1. Let's calculat to find, in...