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    Question

    Section 3

    The average age of three children is 16 years. If their

    ages are in the ratio 1:3:4. Find the age of the youngest child.
    A 6 years Correct Answer Incorrect Answer
    B 10 years Correct Answer Incorrect Answer
    C 7 years Correct Answer Incorrect Answer
    D 12 years Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Total age of three children = 16 × 3 = 48 years Let their ages be x, 3x and 4x respectively. => x + 3x + 4x = 48 => 8x = 48 => x = 6 Therefore the age of youngest child = 6 × 1 = 6 years

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