CAT 2018 Slot 1 QA Q20 Progressions & Series

Question 20 of the Quantitative Ability (QA) section, CAT 2018 Slot 1, with CAT's official answer.

Let x, y, z be three positive real numbers in a geometric progression such that x < y < z. If 5x, 16y, and 12z are in an arithmetic progression then the common ratio of the geometric progression is
  1. A
    \(\frac{1}{6}\)
  2. B
    \(\frac{3}{6}\)
  3. C
    \(\frac{3}{2}\)
  4. D
    \(\frac{5}{2}\)

Answer: (D) 5/2 Progressions & Series MCQ

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