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If log a/b + log b/a = log ( a + b ), then:

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If log a/b + log b/a = log ( a + b ), then: Answer: a + b = 1

log a/b + log b/a = log ( a + b ) ⇒ log (a + b ) = log [ a/b x b/a ] = log 1. So, a + b = 1.

Question context

This question is part of 📏 Arithmetic Aptitude within the broader 🧠 Aptitude Mastery subject and appears in the DemoPaper-Pakistan preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.