Mathematics · Mixtures and Alligations

A 40 kg alloy of German Silver contains Copper and Zinc in a certain proportion. If it initially has 10% Zinc, how much pure Zinc (in kg) should be added to the alloy so that the new mixture contains 20% Zinc?

Verified Solution4 OptionsUpdated: October 2026👁️1 View

Correct answer

5 kg

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