CAT 2018 Slot 1 QA Q27 Logarithms & Exponents

Question 27 of the Quantitative Ability (QA) section, CAT 2018 Slot 1, with CAT's official answer.

If log2(5 + log3a) = 3 and log5(4a + 12 + log2b) = 3, then a + b is equal to
  1. A
    32
  2. B
    59
  3. C
    67
  4. D
    40

Answer: (B) 59 Logarithms & Exponents MCQ

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