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    Question

    Father's age is 30 years more than the son's age. Ten

    years hence the father's age will become three times the son's age that time. What is son's present age in years?
    A 8 Correct Answer Incorrect Answer
    B 7 Correct Answer Incorrect Answer
    C 5 Correct Answer Incorrect Answer
    D 12 Correct Answer Incorrect Answer

    Solution

    ATQ,

    Let son's age = x Then father's age = x + 30 After 10 years: Son = x + 10 Father = x + 40 Given: x+40=3(x+10)⇒x+40=3x+30⇒10=2x⇒x=5

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