New Enroll in RBI Grade B New Batch - Starts on May 21

    Question

    Which of the following numbers will replace the question

    mark (?) in the given series? 11, 18, 29, ? , 59, 78
    A 42 Correct Answer Incorrect Answer
    B 45 Correct Answer Incorrect Answer
    C 35 Correct Answer Incorrect Answer
    D 43 Correct Answer Incorrect Answer

    Solution

    The logic is: (Difference of prime numbers.) 11 + 7 = 18 18 + 11 = 29 29 + 13 = 42 42 + 17 = 59 59 + 19 = 78

    Practice Next