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SSC Quantitative Aptitude Number System and its Operations Question Bank Number Series and Sequences (I)

  • question_answer
    Which term of the sequence 7, 10, 13,... is 151?

    A) 29th

    B) 19th

    C) 59th

    D) 49th

    Correct Answer: D

    Solution :

    [d] Let the nth term \[=151\] Here, first term, \[a=7\] Common difference, \[d=3\] \[\therefore \]      \[{{T}_{n}}=a+(n-1)d\] \[\Rightarrow \]   \[151=7+(n-1)\times 3\] \[\Rightarrow \]   \[(n-1)\times 3=144\] \[\Rightarrow \]   \[n-1=\frac{144}{3}=48\]\[\Rightarrow \]\[n=49\]


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