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Philip, Tom and Brad start jogging around a circular field and complete a single round in 18, 22 and 30 seconds respectively. In how much time, will they meet again at the starting point?

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Philip, Tom and Brad start jogging around a circular field and complete a single round in 18, 22 and 30 seconds respectively. In how much time, will they meet again at the starting point? Answer: 16 min 30 sec

To find when all three runners return together to the starting point, calculate the least common multiple of 18, 22 and 30 seconds. Their LCM is 990 seconds, which equals 16 minutes and 30 seconds. Therefore, they will simultaneously reach the starting point again after 16 minutes 30 seconds.

Question context

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