CAT 2017 Slot 1 QA Q24 Logarithms & Exponents

Question 24 of the Quantitative Ability (QA) section, CAT 2017 Slot 1, with CAT's official answer.

If 92x – 1 – 81x-1 = 1944, then x is
  1. A
    3
  2. B
    \(\frac{9}{4}\)
  3. C
    \(\frac{4}{9}\)
  4. D
    \(\frac{1}{3}\)

Answer: (B) 9/4 Logarithms & Exponents MCQ

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See every question on Exponential equation turned into a quadratic in a^x.

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