Two types of alloys a and b have gold and copper in the ratio 7:5 and 6:5 if they are mixed in equal quantities ratio of gold and silver in this new mixture?
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If these equally amount of two alloys are melted and made alloy C. What will be the ratio of gold and copper in alloy C? a) 25 : 23 b) 33 : 25 c) 15 : 17 d) 17 : 15.
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