Multiple Choice Questions on An alloy of copper and aluminum has 40 copper Another alloy of Copper and Zinc has Copper and Zinc i........... for IBPS(Clerical) Exam Preparation

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Multiple Choice Questions

An alloy of copper and aluminum has 40 copper Another alloy of Copper and Zinc has Copper and Zinc i...........

Quantitative Aptitude(IBPS CL) Mixture and Alligation
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    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. Quantity of aluminum is what percent more/less than the quantity of copper in final alloy.

    11(1/9)%

    Incorrect Answer

    11(1/3)%

    Incorrect Answer

    12% 

    Incorrect Answer

    13%

    Incorrect Answer

    12.5%

    Correct Answer
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    Explanation:

    In 1st alloy,
    Copper = 40%
    Aluminum = 60%
    So, ratio = 2: 3
    In 2nd allow,
    Ratio = 2: 7
    Final mixture ratio = 5: 3
    So, total amount of copper =


    And, total amount of aluminum =

    Hence option E is correct

    By: Munesh Kumari
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