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  9. Q56

TNPSC Group-I 2017 · Question 56 of 71

Sum to n terms of an Arithmetic progression is 2n^2 + n, then eighth term is

Aptitude

  1. A136
  2. B36
  3. C131
  4. D31Correct

Answer: D. 31

Explanation

8th term = S8 - S7 = 136 - 105 = 31.

Source: TNPSC Group-I Prelims 2017 (GS1902) - Official Question Paper (scribd OCR, tick-marked answers)

← Q55View full paper (71 questions)Q57 →

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