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    Question

    In 5 years from now, the ratio of ages of P and Q will

    be 9:5. If age of P after 15 years is 150% more than age of Q 10 years ago, find the difference between their current ages.
    A 66 yrs Correct Answer Incorrect Answer
    B 24 yrs Correct Answer Incorrect Answer
    C 40 yrs Correct Answer Incorrect Answer
    D 54 yrs Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let ages of P and Q five years hence be 9x and 5x years respectively ATQ: 9x + 10 = 2.5(5x – 10) ⇒ 9x + 10 = 12.5x – 25 ⇒ 3.5x = 35 ⇒ x = 10 Desired difference = (9x – 5) – (5x – 5) = 4x = 4 × 10 = 40 years

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