CAT 2019 Slot 2 QA Q1 Logarithms & Exponents

Question 1 of the Quantitative Ability (QA) section, CAT 2019 Slot 2, with CAT's official answer.

The real root of the equation 26x + 23x+2 - 21 = 0 is
  1. A
    \(\frac{log_{2}3}{3}\)
  2. B
    log29
  3. C
    \(\frac{log_{2}7}{3}\)
  4. D
    log227

Answer: (A) log_233 Logarithms & Exponents MCQ

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Same concept in other years

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

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