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SSC Sample Paper SSC CGL - Sample Paper-15

  • question_answer
    Direction: A series is given with one/ two term missing. Choose the correct alternative from the given ones that will complete the series.
    3, 12, 27, 48, 75, 108, ?

    A) 147                              

    B) 162     

    C) 183                              

    D) 192

    Correct Answer: A

    Solution :

    The pattern is +84, \[-168,\] \[+\,336,.....\] i.e., \[+\,84,\] \[-(84\times 2),\] \[+(84\times {{2}^{2}}),...\] So, missing term \[=815-(84\times {{2}^{3}})=815-672=143\]


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