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Railways R.R.C. (Mumbai) Solved Paper Held on 2-11-2014 - I

  • question_answer
    Radha is 40 years old and Rajeev is 60 years oil. How many years ago, was the ratio of their ages 5?

    A) 40                                

    B) 10

    C) 25                                

    D) 21

    Correct Answer: B

    Solution :

    Suppose x years ago, the ratio of their ages was 3 : 5 Then,    \[\frac{40-x}{60-x}=\frac{3}{5}\] \[200-5x=180-3x\] \[2x=20\] \[x=10\]


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