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4.5 g of an alloy of copper and zinc contains 3.5 g of copper. What weight of copper will there be in 18.9 g of the alloy?

An alloy of copper and zinc contains 65% of copper. Find the weight of zinc in 3.6 kg of alloy.

4.5g of an alloy of copper and zinc contains 3.5 g of copper. How much copper will there be in 18.9 g of alloy ?

The ratio of copper and zinc in an alloy is 5:3. If the weight of copper in the alloy is 30.5 g. find the weight of zinc in it.

The ratio of copper and zinc in an alloy is 5:3 . If the weight of the copper in the alloy is 30. 5 grams, find the weight of zinc in the alloy.

The ratio of copper and zinc in an alloy is 5:3 . If the weight of the copper in the alloy is 30. 5 grams, find the weight of zinc in the alloy.

The ratio of copper and zinc in an alloy is 5:3 If the weight of the copper in the alloy is 30.5 grams,find the weight of zinc in the alloy.

The ratio of copper and zinc in an alloy is 9 : 5 If the weight of copper in the alloy is 48.6 grams. Find the weight of zinc in the alloy.

An alloy is made of copper and zinc in the ratio 3:2. If the weight of zinc in the alloy is 20.4 g, what is the weight of copper in the alloy?

The ratio of copper and zinc in an alloy is 9:7 If the weight of zinc in the alloy is 9.8kg, find the weight of copper in the alloy.