Question

an alloy of copper and tin consists of 20 parts of tin and 108 parts of copper. find the percentage of tin and of copper in the alloy?

Answer 1

Solutions :-

Given :

Tin = 20 parts
Copper = 108 parts

Alloy of tin and copper = (20 + 108) = 128

Now,

Find the Percentage of tin in alloy :-

$\frac{tin}{alloy} \times 100\% \\ \\ = \frac{20}{128} \times 100\% \\ \\ = \frac{2000}{128} \% \: = 15.625\%$

Find the Percentage of copper in alloy :-

$\frac{copper}{alloy} \times 100\% \\ \\ = \frac{108}{128} \times 100\% \\ \\ = \frac{10800}{128} \% = 84.375\%$

Hence,
Percentage of tin is 15.625% and copper is 84.375% in alloy.

Answer 2

Here is your solution

Given :-

Total number of Tin part = 20 parts.

Toral nunber of Copper parts = 108 parts

Alloy of tin and copper = (20 + 108) = 128

Now,

we have to find the Percentage of tin in alloy :-

% of copper =20/128×100%=1282000​%=15.625%​ 

we have to Find the Percentage of copper in alloy :-

% of copper​=108/128×100​%=84.375%​ 

Hence,
Percentage of tin is 15.625% and copper is 84.375% in alloy.

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