The ratio of zinc and copper in an alloy is 7 ratio 9 if the weight of copper in the alloy is 12.6 kg find the weight of zinc in it .
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Ratio of zinc and copper =7:9
Let the ratio =7x:9x
weight of copper =9x=12.6kg
=12600gm
since;9x=12600
=12600/9
=1400=1.4kg
Weight of Zinc=7x
=7×1.4
=9.8 kg
=9800gm
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