1.

An alloy contains only zinc and copper. One such alloy weighing 15 gm contains zinc and copper in the ratio of 2 : 3 by weight. If 10 gm of zinc is added then find what amount of copper has to removed from the alloy such that the final alloy has zinc and copper in the ratio of 4 : 1 by weight.?

Answer»


ANSWER :5 GM


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