The sentence should be completed with "on" or "with" to indicate how he is managing financially, or "despite" to show that he is living on the income even though it is small. The correct preposition depends on the intended meaning.
He lives _______ a small income.
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Question context
This question is part of 🗣️ Verbal Ability within the broader 🧠 Aptitude Mastery subject and appears in the Audit preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.