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    Question

    The sum of the ages of a father and his son is 50 years.

    Five years ago, the father's age was four times that of his son. What are their current ages? 
    A Father: 36 years, Son: 14 years Correct Answer Incorrect Answer
    B Father: 40 years, Son: 10 years Correct Answer Incorrect Answer
    C Father: 37 years, Son: 13 years Correct Answer Incorrect Answer
    D Father: 42 years, Son: 8 years Correct Answer Incorrect Answer

    Solution

    Let the son's current age be x years. Then, the father's current age is (50 - x) years. Five years ago, the father's age was (50 - x - 5) and the son's age was (x - 5). According to the problem: (50 - x - 5) = 4(x - 5) 45 - x = 4x - 20 45 + 20 = 5x x = 13 So, the son's current age is 13 years, and the father's current age is 37 years. Correct answer: c) Father: 37 years, Son: 13 years

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