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

    Question

    The average age of a group of 10 students is 30 years.

    Two persons of age 40 years and 35 years, left the group and 2 persons of age 50 years and 95 years, joined the group. Find the new average age of the group.
    A 37 years Correct Answer Incorrect Answer
    B 31 years Correct Answer Incorrect Answer
    C 38 years Correct Answer Incorrect Answer
    D 40 years Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    Required average = {(10 × 30) – 40 – 35 + 50 + 95}/10 = 37 years

    Practice Next

    Relevant for Exams: