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SSC Sample Paper SSC CHSL (10+2) Sample Test Paper-1

  • question_answer
    In the following number series a wrong number is given. Find out that number. 8, 18, 40, 86, 178, 370, 752

    A)  178                               

    B)  180

    C)  128                 

    D)         156

    Correct Answer: A

    Solution :

     The pattern is:             \[8\times 2+2=16+2=18\]             \[18\times 2+4=36+4=40\]             \[40\times 2+6=80+6=86\]             \[86\times 2+8=172+8\]             \[=\ne 178\]             \[180\times 2+10=360+10=370\]


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