Railways Sample Paper RRB (Group D) Sample Test Paper-14

  • question_answer
    DIRECTION: In each of the following number series, a wrong number is given. Find out that number.
    \[\begin{matrix}    2 & 8 & 32 & 148 & 765 & 4626 & 32431  \\ \end{matrix}\]

    A)  765     

    B)         148

    C)  8                    

    D)  32

    Correct Answer: D

    Solution :

    [d] The series is \[\times 2+{{2}^{2}},\,\,\times 3+{{3}^{2}},\,\,\times 4+{{4}^{2}},\,\,\times 5+{{5}^{2}}...\] Hence, 32 is wrong. It should be 33..


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