To find the starting time, subtract the total journey duration from the arrival time. Here, 15:06 minus 5 hours 15 minutes gives a starting time of 09:51.
A train arrives at 15:06. If it started its journey 5¼ hours ago, what was the starting time?
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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.