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A and B are two alloys of gold and coppe...

A and B are two alloys of gold and copper prepared by mixing metals in ratios 7:2 and 7:11 respectively. If equal quantities of the alloys are melted to form a third alloy C, the ratio of gold and copper in C will be:

A

`5:7`

B

`5:9`

C

`7:6`

D

None of these

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The correct Answer is:
D
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