Magnetic iron ore contains 70% pure iron. how many tons of pure iron are 4.6 tons of magnetic iron ore.
| April 2, 2021 | education
It is known that magnetic iron ore contains 70% pure iron. Let’s determine how many tons of pure iron there are 4.6 tons of magnetic iron ore. We write down the solution.
4.6 tons is 100%.
X tons is 70%.
X = 4.6 * 70 ÷ 100 = 3.22 tons.
This means that 4.6 tons of magnetic iron ore contains 3.22 tons of pure iron.
Answer: 3.22 tons of pure iron.
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