CAT 2018 Slot 2 QA Q34 Logarithms & Exponents

Question 34 of the Quantitative Ability (QA) section, CAT 2018 Slot 2, with CAT's official answer.

\(\frac{1}{log_{2}100}\) - \(\frac{1}{log_{4}100}\) + \(\frac{1}{log_{5}100}\) - \(\frac{1}{log_{10}100}\) + \(\frac{1}{log_{20}100}\) - \(\frac{1}{log_{25}100}\) + \(\frac{1}{log_{50}100}\) = ?
  1. A
    0
  2. B
    \(\frac{1}{2}\)
  3. C
    -4
  4. D
    10

Answer: (B) 1/2 Logarithms & Exponents MCQ

A worked solution for this question is being written. Meanwhile, practise it in a timed mock and see how other aspirants did.

Same concept in other years

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

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