1.

4 kg of a metal contains 1/5 copper and rest in Zinc. Another 5 kg of metal contains 1/6 copper and rest in Zinc.The ratio of Copper and Zinc  into the mixture of these two metals:

A. 49 : 221
B. 39:231
C. 94:181
D. None of these
Answer» B. 39:231


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