CAT 2020 Slot 2 QA Q5 Logarithms & Exponents

Question 5 of the Quantitative Ability (QA) section, CAT 2020 Slot 2, with CAT's official answer.

The value of loga\(\frac{a}{b}\) + logb\(\frac{b}{a}\), for 1 < a ≤ b cannot be equal to
  1. A
    -0.5
  2. B
    1
  3. C
    0
  4. D
    -1

Answer: (B) 1 Logarithms & Exponents MCQ

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Same concept in other years

See every question on Change of base: log_a b = 1 / log_b a.

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