the ratio of copper and zinc in an alloy is 4:7. if the total weight of the alloy is 7.7 kg , find the weight of copper and zinc .
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Answer:
Total weight=7.7 kg
Weight of:-
Copper:Zinc=4:7
To calculate:- weight of Copper(Cu) & Zinc(Zn).
Let their weights be 4x and 7x
4x+7x=Total weight
11x=7.7 kg
x=
x=0.7 kg
Weights of
Copper=4x
=4×0.7
Zinc=7x
=7×0.7
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