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    Question

    The average age of three children is 32 years. If their

    ages are in the ratio 3:6:7. Find the age of the youngest child.
    A 30 years Correct Answer Incorrect Answer
    B 25 years Correct Answer Incorrect Answer
    C 13.5 years Correct Answer Incorrect Answer
    D 18 years Correct Answer Incorrect Answer

    Solution

    Total age of three children = 32 × 3 = 96 years Let their ages be 3x, 6x and 7x respectively. => 3x + 6x + 7x = 96 => 16x = 96 => x = 6 Therefore the age of youngest child = 6 × 3 = 18 years

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