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    Question

    The average age of 4 children in a family is 30% of the

    average age of the mother and the youngest child. The total age of the father and the eldest child is 42 years. If the father’s age is 28 years, what is the age of second child?
    A 25 years Correct Answer Incorrect Answer
    B 24 years Correct Answer Incorrect Answer
    C 30 years Correct Answer Incorrect Answer
    D Cannot be determined Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Since the total or average age of all the family members are not given, the given data is inadequate. So, the age of second child cannot be determined.

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