# A and B are two alloys of gold and copper prepared by mixing metals in the ratios 5 : 3

A and B are two alloys of gold and copper prepared by mixing metals in the ratios 5 : 3 and 5 : 11 respectively. Equal quantities of these alloys are melted to form a third alloy C. The ratio of gold and copper in the alloy C is:

- 33:25
- 25:33
- 15:17
- None of these

**Answer: (3) 15: 17**

**Solution:-**

A contains Gold=5/8 Copper=3/8

B contains Gold=5/16 Copper=11/16

After mixing A & B , C will have Gold=5/8+5/16=15/16

Copper=3/8+11/16=17/16

Therefore ratio of Gold:Copper=15/16 : 17/16 =15:17

Hence, the correct answer is option (3) 15: 17.