Question Paper from: IBPS Clerk Mains 2017

An alloy of copper and aluminum has 40% copper. Another alloy of Copper and Zinc has Copper and Zinc in the ratio 2: 7. These two alloys are mixed in ratio 5:3. The quantity of aluminum is what percent more/less than the quantity of copper in the final alloy.

1:
11 1/9%
2:
11 1/3%
3:
12%
4:
13%
5:
12.5%
Solution:
Chapter Name: Alligation and Mixture

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