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    Question

    4 years ago, ratio of ages of A and B was 3:4. 4 years

    hence, ratio will be 4:5. Find B's present age.
    A 28 yrs Correct Answer Incorrect Answer
    B 36 yrs Correct Answer Incorrect Answer
    C 32 yrs Correct Answer Incorrect Answer
    D 48 yrs Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, Gap between "4 years ago" and "4 years hence" = 8 years. Ratio gap (3 to 4) = 1 unit. 1 unit = 8 years. B's age (4 yrs ago) = 4 units = 32. Present = 32 + 4 = 36.

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