120 men can do work = 30 days 1 man can do this work = 120 x 30 = 3600 days 80 men can do this work = 3600/80 = 45 days
120 men are used to build huge building for 30 days. How long will it take 80 men to do the same work?
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Question context
This question is part of 📏 Arithmetic Aptitude within the broader 🧠 Aptitude Mastery subject and appears in the ASF Airports Security Force preparation collection. Reviewing the answer together with nearby questions helps reinforce the underlying concept and identify how it may appear in competitive exams.