The alloy contains 18% copper. How many kilograms of alloy do you need to take to contain 54kg of copper?
| May 18, 2021 | education
From the condition of the problem, we need 54 kg of copper to make up 18% of the alloy. To find the mass of 100% of the alloy, we first find the mass of one percent of the alloy:
54/18 = 3 kg in one percent.
Let us now find the mass of 100 percent of the alloy:
3 * 100 = 300 kg in the entire alloy.
Answer: You need to take 4620 kg of alloy to get 54 kg of copper.
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