Question

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♦♦An alloy of copper and tin consist of 20 parts of tin and 108 parts of copper. Find the percentage of tin of copper in the alloy. ♦♦

Answer 1

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$\bold {\Large {Solutions :-}}$

$\bold {\underline {Given :}}$

Tin = 20 parts
Copper = 108 parts

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

$\bold {\underline {Now,}}$

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 :-

$\frac{Copper}{Alloy} \times 100\% \\ \\ = \frac{108}{128} \times 100\% \\ \\ = \frac{10800}{128} \% = 84.375\%$


$\bold {\underline {Hence,}}$

Percentage of tin is $\bold {15.625}$% and copper is $\bold {84.375}$% in alloy.


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Answer 2

Here is your solution

Given:-

Total number of parts of tin = 20

Total number of parts of copper = 108

Now

We have to find percentage of tin in alloys.

% of tin =>tin/alloys ×100

% of tin =>20/128×100

% of tin =15.625%

Now

we have to find percentage of copper in alloys .

%of copper =>copper/alloys ×100

%of copper =>108/128×100

%of copper=>84.375%

Hence

percent of tin is 15.625% & percentage of copper is 84.375% in alloys .

Hope it helps you