Question

The ratio of copper and zinc in an alloy is 5:3. If the weight of the copperin the alloy is 30.5g,then what is the weight of zinc?​

Answer 1

It is given that copper and zinc are in 5:3. and weight of copper = 30.5 gm

So, total weight of alloy = 3+5 =8

weight of copper 5/8 = 30.5

so weight of an alloy = 30.5 x8/5 = 6.1 x8 = 48.8 gm

So weight of zinc = 3 x48.8/8 = 3 x6.1 = 18.3 gm
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