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    Question

    The ratio of age of β€˜P’ 4 years ago to the age of

    β€˜Q’ 6 years hence from now is 3 : 5. If the sum of their present ages is 54 years, then find the age of β€˜Q’ 2 years hence from now.
    A 31 years Correct Answer Incorrect Answer
    B 33 years Correct Answer Incorrect Answer
    C 29 years Correct Answer Incorrect Answer
    D 35 years Correct Answer Incorrect Answer

    Solution

    Let the present ages of β€˜P’ and β€˜Q’ be β€˜p’ years and β€˜q’ years respectively. Then, p + q = 54 Or, q = 54 βˆ’ p ATQ, {(p - 4)}/{(q + 6)} = {3/5} Or, 5(p βˆ’ 4) = 3(q + 6) Or, 5p βˆ’ 20 = 3q + 18 Or, 5p βˆ’ 3q = 38 Or, 5p βˆ’ 3(54 βˆ’ p) = 38 Or, 5p βˆ’ 162 + 3p = 38 Or, 8p = 200 Or, p = 25 Or, q = 54 βˆ’ 25 = 29 Therefore, age of β€˜Q’ 2 years hence from now = 29 + 2 = 31 years

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