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Rajan@2021
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Is -150 a term of the AP 11, 8, 5, 2,…?

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A basic and conceptual question from arithmetic progression chapter in which we have given a series of AP 11, 8, 5, 2 and we are to find whether -150 is a term of the above series?

RS Aggarwal, Class 10, Arithmetic Progression, Chapter 23, Question no 23

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1 Answer

  1. D=3
    a+(n1)d=151$$
    11+(n1)3=151
    113n+3=151
    3n=165
    n=55
    55thterm

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