CAT 2020 Slot 3 QA Q11 Ratio, Mixtures & Averages

Question 11 of the Quantitative Ability (QA) section, CAT 2020 Slot 3, with CAT's official answer.

If a,b,c are non-zero and 14a = 36b = 84c, then 6b(\(\frac{1}{c}\) - \(\frac{1}{a}\)) is equal to

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Answer: 3 Ratio, Mixtures & Averages TITA

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