Question

    The current age of ‘X’ is 36 years which is 20% more

    than the age of ‘Y’. The average age of ‘Y’ and ‘Z’ is 45 years. The ratio of present ages of ‘Z’ and ‘W’ is 4:7. Find the difference between the present ages of ‘X’ and ‘W’.
    A 52 yrs Correct Answer Incorrect Answer
    B 35 yrs Correct Answer Incorrect Answer
    C 69 yrs Correct Answer Incorrect Answer
    D 45 yrs Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Present age of ‘Y’ = 36 / 1.20 = 30 years

    Present age of ‘Z’ = 2 × 45 – 30 = 90 – 30 = 60 years

    Present age of ‘W’ = 60 × (7 / 4) = 105 years

    Required difference = 105 – 36 = 69 years

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