Question

An alloy consists of 12 parts of zinc and 38 parts of copper. Find the percentage of copper and zinc in an alloy

Answer 1

Answer:

Step-by-step explanation:

First we do sum of copper and zinc= 12+38=50

Number of zinc=12

Percentage of zinc=12/50×100=24%

Number of copper =38

Percentage of copper =38/50/100=76%

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Answer 2

Total Parts of Alloy = 12+38 => 50

% of Zinc = $\sf{\dfrac{12}{50}\times100=12\times2=24\%}$

% of Copper = $\sf{\dfrac{38}{12}\times100=38\times2=76\%}$

Therefore, the total percent adds up to 100%.

So,

% of Zinc = 24%

% of Copper = 76%

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