Question

    The average age of three children is 15 years. If their

    ages are in the ratio 2:6:7. Find the age of the youngest child.
    A 12 years Correct Answer Incorrect Answer
    B 9 years Correct Answer Incorrect Answer
    C 6 years Correct Answer Incorrect Answer
    D 4 years Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Total age of three children = 15 × 3 = 45 years Let their ages be 2x, 6x and 7x respectively. => 2x + 6x + 7x = 45 => 15x = 45 => x = 3 Therefore the age of youngest child = 2 × 3 = 6 years

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