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CLAT Sample Paper CLAT Sample Paper-7

  • question_answer
    In an alloy, the ratio of copper and zinc is 5:2. If 1.250 kg of zinc is mixed in 17 kg 500 g of alloy, then the ratio of copper and zinc will be

    A)  2 : 1           

    B)  2 : 3

    C)  3:2           

    D)  1 : 2

    Correct Answer: A

    Solution :

    Weight of copper in 17 kg 500 g i.e., 17500 g of alloy \[=\frac{5}{7}\times 17500=12500\,g\] and weight of zinc = (17500 -12500) = 5000 g Since, 1250 g of zinc is mixed in alloy. \[\therefore \] Total weight of zinc = 1250 + 5000 = 6250 g \[\therefore \] Required ratio = 12500: 6250 = 2 : 1


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