Question

an alloy of tin and copper consists of 24 parts of tin and 136 parts of copper.find the percentage of copper in the alloy

Answer 1

the ratio will be tin : copper=3:17.
so copper will be in percentage= 17/20*100=85%

Answer 2

Here is your Solutions :-

Given :

Tin = 24 parts
Copper = 136 parts

Alloy of tin and copper = (24 + 136) = 160

Now,

Find the Percentage of tin in alloy :-

% of copper =24/160×100%=16%​ 

Find the Percentage of copper in alloy :-

% of copper​=136/160×100​%=85%​ 

Hence,
Percentage of tin is 16% and copper is 85% in alloy.

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