Question
A and B are two alloys of gold and copper prepared by mixing metals in the ratio 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 : 5
- D) 9 : 5
- E) None of these
