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29-05-2022
Mathematics

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An alloy contains zinc and copper in the ratio 7 : 9. Find the weight of copper if it has 31.5 kg of zinc

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cloud314 cloud314

29-05-2022

24.5 kg

first you have to divide 31.5 by 9, which is 3.5

then you multiply 7 by 3.5 to get 24.5

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