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

    Question

    If the mean of first n natural numbers is 3n/5, then the

    value of n is
    A 4 Correct Answer Incorrect Answer
    B 5 Correct Answer Incorrect Answer
    C 6 Correct Answer Incorrect Answer
    D 3 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    We are given that the mean of the first n natural numbers = 3n/5 Use the Mean Formula The mean of the first 'n' natural numbers is:

    Practice Next