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    Question

    Five years ago, the ratio of the ages of A and B was

    2:3. After 5 years, the ratio of their ages will be 4:5. What are their present ages?
    A 15 and 20 Correct Answer Incorrect Answer
    B 20 and 25 Correct Answer Incorrect Answer
    C 25 and 30 Correct Answer Incorrect Answer
    D 30 and 35 Correct Answer Incorrect Answer

    Solution

    Let their present ages be 3x and 4x. 5 years ago, their ages were (3x - 5) and (4x - 5). (3x - 5)/(4x - 5) = 2/3. Solving, we get x = 5. Present ages = 15 and 20. Correct Option: a) 15 and 20

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