The alloy consists of 17 parts of copper and three parts of zinc (by weight).
| April 8, 2021 | education
The alloy consists of 17 parts of copper and three parts of zinc (by weight). What is the mass of an alloy if it contains 28 kg less zinc than copper?
The solution of the problem.
Let’s find the number of parts in the alloy:
17 + 3 = 20 (parts) in total.
Since zinc alloy is 28 kg less than copper, we find the mass of one part:
28: (17 – 3) = 2 (kg) in one piece.
2 • 20 = 40 (kg) weight of the alloy.
Answer: 40 kg is the mass of the alloy.
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