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    Question

    Ratio of present ages of A and B is 7:5, respectively. C

    who is 3 years older than A will become 36 years older after 12 years. Find the present age of B.
    A 15 years Correct Answer Incorrect Answer
    B 10 years Correct Answer Incorrect Answer
    C 18 years Correct Answer Incorrect Answer
    D 14 years Correct Answer Incorrect Answer

    Solution

    Let, present ages of A and B be ‘7x’ years and ‘5x’ years respectively. So, 7x + 3 = 36 – 12 7x = 21 x = 3 Present age of B = 5x = 15 years

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