An alloy consists of 13 part of copper, 7 parts of zinc and 5 parts of nickel. Find the percentage of copper in the alloy.
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percentage of copper in the alloy is 52 %
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part of copper divided by total parts of alloy × 100
so
13 by 25 × 100
so 52 % is ur answer
so
13 by 25 × 100
so 52 % is ur answer
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