New RBI Grade B 2025 Notification will come Soon! Enroll Here

    Question

    Section 3

    The average age of three children is 22 years. If their

    ages are in the ratio 2:4:5. Find the age of the youngest child.
    A 16 years Correct Answer Incorrect Answer
    B 10 years Correct Answer Incorrect Answer
    C 14 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 = 22 × 3 = 66 years Let their ages be 2x, 4x and 5x respectively. => 2x + 4x + 5x = 66 => 11x = 66 => x = 6 Therefore the age of youngest child = 6 × 2 = 12 years

    Practice Next