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7 February, 23:08

An alloy contains 57 g of silver and 20g of copper what is the percentage silver in the alloy

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  1. 7 February, 23:10
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    Total weight of alloy is

    67 + 20 = 87 g

    67 g of which is gold

    So % gold is 67/87 * 100 = 77.01%
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