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    Question

    The ratio of marks obtained by Rajesh, Rakesh and Ramesh

    in an exam is 2 : 4 : 9. What are the marks obtained by Rakesh and Ramesh, if Rajesh scored 30 marks in the exam?
    A Rakesh = 40, Ramesh = 90 Correct Answer Incorrect Answer
    B Rakesh = 60, Ramesh = 135 Correct Answer Incorrect Answer
    C Rakesh = 120, Ramesh = 180 Correct Answer Incorrect Answer
    D Rakesh = 90, Ramesh = 40 Correct Answer Incorrect Answer

    Solution

    ATQ, we can say that The ratio of marks obtained by Rajesh, Rakesh and Ramesh in an exam is given as 2x : 4x : 9x As we know Rajesh scored 30 marks in the exam, 60 and 135 So,  2x = 30 x = 15 Then he marks obtained by Rakesh and Ramesh is  4x = 4 × 15 = 60 9x = 9 × 15 = 135 So,  marks obtained by Rakesh and Ramesh is  

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