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GATE Electronics and Communications (EC) 2018 Solved Paper

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Question : 7

Total: 65

Two alloys A and B contain gold and copper in the ratios of 2 : 3 and 3 : 7 by mass, respectively. Equal ratio of alloys A and B are melted to make an alloy C. The ratio of gold to copper in alloy C is ____.

5 : 10
7 : 13
6 : 11
9 : 13

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