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

    Question

    Find the largest 4-digit number that is exactly

    divisible by 27 and 45.
    A 9720 Correct Answer Incorrect Answer
    B 9900 Correct Answer Incorrect Answer
    C 9990 Correct Answer Incorrect Answer
    D 9999 Correct Answer Incorrect Answer

    Solution

    The number must be divisible by LCM(27, 45). LCM of 27 and 45 = 135. Largest 4-digit number is 9999. Divide 9999 by 135: Quotient = 74. Largest number divisible by 135 = 135 × 74 = 9990. Correct Option: c

    Practice Next

    Relevant for Exams: