Let x and y be positive real numbers such that log_5(x + y) + log_5(x - y) = 3, and log_2y - log_2x = 1 - log_23. Then xy equals

CAT 2019 Slot 1 QA Q26 Logarithms & Exponents

Question 26 of the Quantitative Ability (QA) section, CAT 2019 Slot 1, with CAT's official answer.

Let x and y be positive real numbers such that log₅(x + y) + log₅(x - y) = 3, and log₂y - log₂x = 1 - log₂3. Then xy equals

Answer: (B) 150 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.