The ratio of zinc and copper in an alloy is 7:9 if the weight of copper in the alloy is 12.6kg find the weight of zinc in it
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ratio of zinc and copper in an alloy is = 7:9
let the weight of zinc and copper in it be (7x)and (9x)
now, the weight of copper is = 12.6kg
. : 9x = 12.6
=> x = 12.6/ 9 = 1.4
. : weight of zinc = 7x = 7 * 1.4 = 9.8kg
let the weight of zinc and copper in it be (7x)and (9x)
now, the weight of copper is = 12.6kg
. : 9x = 12.6
=> x = 12.6/ 9 = 1.4
. : weight of zinc = 7x = 7 * 1.4 = 9.8kg
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