The alloy is composed of copper and tin. It contains 60% copper, which is 11/6 kg more than tin.

The alloy is composed of copper and tin. It contains 60% copper, which is 11/6 kg more than tin. How many kg of copper is in the alloy?

Given:

A – copper mass = 60% of the total alloy

B – mass of tin = 40% of the total alloy

A – B = 11/6

Solution:

1) B / A = 0.4 / 0.6 = 2/3

2) B = 2/3 A – Found the ratio of the mass of the alloys.

3) A – 2/3 A = 11/6

4) 1/3 A = 11/6

5) A = 33/6 = 5.5 (kg) – Substitute the obtained data into the equation.

Answer: 5.5 kg.



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