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

    Question

    6 years ago, the average age of a family of five persons

    was 38 years. In between these 6 years the family adopted a girl. Now at present the average age of the family is same as it was 6 years ago. Find the present age of the girl.
    A 5 years Correct Answer Incorrect Answer
    B 6 years Correct Answer Incorrect Answer
    C 3 years Correct Answer Incorrect Answer
    D 8 years Correct Answer Incorrect Answer

    Solution

    Sum of the present age of the family excluding girl = 5 x (38 + 6) = 220 years Sum of the present age of the family including girl = 6 x 38 = 228 years Present age of the girl = 228 – 220 = 8 years

    Practice Next