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SSC Sample Paper SSC CGL - Sample Paper-28

  • question_answer
    A and B are two different alloys of gold and copper prepared by mixing metals in the proportion 7 : 2 and 7 : 11 respectively. If equal quantities of the alloys are melted to form a third alloy C. The ratio of the gold and the copper in C is

    A) 5 : 7                             

    B) 6 : 6

    C) 7 : 5                 

    D) 14 : 13

    Correct Answer: C

    Solution :

    Ratio of gold and copper in one alloy = 7 : 2 and the ratio d gold and copper in another alloy =7 : 11 The ratio of gold and copper in third alloy \[=14+7:4+11=21:15=7:5\]     


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