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An alloy contains alluminium and zinc in the ratio 5:3 and another alloy contains alluminium and copper in ratio 8:5...

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An alloy contains alluminium and zinc in the ratio 5 : 3 and another alloy contains alluminium and copper in the ratio 8 : 5. If equal weights of both the alloys are mixed together, then what would be the weight of copper per kg in the resulting alloy?

posted May 15 by Mishthy Mukherjee
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1 Answer

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Ratio of the metals in the new alloy
Al : Zn : Cu = (5/8 + 8/13) : (3/8) : (5/13)
= (129/104) : (3/8) : (5/13)
= 129 : 39 : 40
Therefore the copper in the new alloy
= 40/208 = 5/26 kg per kg of the alloy

answer May 15 by Tejas Naik

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