CAT 2017 Slot 2 QA Q33 Progressions & Series

Question 33 of the Quantitative Ability (QA) section, CAT 2017 Slot 2, with CAT's official answer.

An infinite geometric progression a1, a2, a3,... has the property that an = 3(an+1 + an+2 +....) for every n ≥ 1. If the sum a1 + a2 + a3 +...... = 32, then a5 is
  1. A
    \(\frac{1}{32}\)
  2. B
    \(\frac{2}{32}\)
  3. C
    \(\frac{3}{32}\)
  4. D
    \(\frac{4}{32}\)

Answer: (C) 3/32 Progressions & Series MCQ

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