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NTSE Sample Paper NTSE MAT Practice Test-15

  • question_answer
    In the following number series, one term is wrong. Find out the wrong term 7,28,63, 124,215,342,511

    A) 7            

    B) 28

    C) 124          

    D) 342

    Correct Answer: B

    Solution :

    Clearly, the correct series is \[{{2}^{3}}-1,{{3}^{3}}-1,{{4}^{3}}-1,{{5}^{3}}-1,{{6}^{3}}-1,{{7}^{3}}-1\,\,\,and\,\,{{8}^{3}}-1\]28 is wrong number and in its place the correct term is \[{{3}^{3}}-1\]is 26.


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