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Railways Sample Paper RRB (Group D) Sample Test Paper-4

  • question_answer
    DIRECTION: In the following question, select the missing number from the given series. 2, 5, 11, 23, ?

    A)  47                   

    B)  44

    C)  44                   

    D)  43

    Correct Answer: A

    Solution :

    [a] The pattern is: \[2\times 2+1=5\] \[5\times 2+1=11\] \[11\times 2+1=23\] \[23\times 2+1=[47]\] So, the missing number is = 47.


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