A and B are two alloys of gold and copper prepared by mixing metals in – McqOptions

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1.	A and B are two alloys of gold and copper prepared by mixing metals in proportions 7 : 2 and 7 : 11 respectively. If equal quantities of the alloys are melted to from a third alloy C, the proportion of gold and copper in C will be ?
A.	5 : 9
B.	5 : 7
C.	7 : 5
D.	9 : 5
Answer» D. 9 : 5

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