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

    Question

    What will come in place of the question mark (?) in the following series? 

    5, 23, 18, 36, 31,

    ?
    A 27 Correct Answer Incorrect Answer
    B 49 Correct Answer Incorrect Answer
    C 50 Correct Answer Incorrect Answer
    D 65 Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    ATQ, The given series follows the following pattern: (Sum of two consecutive prime numbers) 5 + 18 = 23 23 - 5 = 18 18 + 18 = 36 36 - 5 = 31 31 + 18 = 49

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