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Train Crossing a Boy Part 1 | #airGurukulStateExams | #shorts

25 September 2025

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"How much time will a 400 m long train take to cross a boy standing on the platform at 72 km/h? Speed = 72 km/h = 20 m/s, Distance = 400 m, Time = 400/20 = 20 sec ✅ A quick formula-based trick for MPPCS, UPSC, SSC, Banking exams! 👉 Follow for more math shortcuts!"

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