MathematicsWhich term of the A.P. will be 120 more than its term?

Which term of the A.P. will be 120 more than its term?


  1. A
  2. B
  3. C
  4. D
     

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    Solution:

    Concept: Whenever  this type of problem occurs, it is best  to calculate the specific term of A.P that  the question indicates the relationship and  compare it to the required conditions.
    Given sequence is The first term is The common difference is we know that the term of the arithmetic progression is given by Let the term be 120 more than the term
    Therefore, term term
    Hence, the term is 120 more than the term
    Hence, the option 1 is correct.
     
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