![Alloy A contains copper and zinc in the ratio of 4: 3 and alloy B contains copper and zinc in the ratio 5:2. A and B are taken in the ratio](https://www.gkseries.com/blog/wp-content/uploads/2024/03/Alloy-A-contains-copper-and-zinc-in-the-ratio-of-4-3-and-alloy-B-contains-copper-and-zinc-in-the-ratio-5-2.-A-and-B-are-taken-in-the-ratio.jpg)
Alloy A contains copper and zinc in the ratio of 4: 3 and alloy B contains copper and zinc in the ratio 5:2. A and B are taken in the ratio of 5: 7 and melted to form a new alloy. The percentage of zinc is the new alloy as closest to
(a) 34.5%
(b) 35%
(c) 35.5%
(d) 36%
Sol:
![](https://www.gkseries.com/blog/wp-content/uploads/2024/03/image-330-1024x484.png)
Required percentage = 34.52%