Railways R.R.C. (Chennai) Solved Paper Held on 17-11-2013

  • question_answer The ratio of the ages of A and B is 3 : 5. After 6 years, the ratio of their ages will be 2 : 3. The present age of A is?

    A) 18 years

    B)               20 years

    C) 24 years           

    D) 28 years

    Correct Answer: A

    Solution :

    Let ages of A and B are \[3x\] and \[5x\] respectively. Then, after 6 years \[\frac{3x+6}{5x+6}=\frac{2}{3}\] \[9x+18=10x+12\] \[x=6\] Hence, the age of \[A=3x=3\times 6\] = 18 years

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