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1. A 120 meter long train is running at a speed of 90 km/hr. It will cross a railway platform 230 m long in :

Solution:
Speed = (90×518)   m/sec = 25 m/sec
Total distance covered
= (120 + 230) m
= 350 m
∴ Required time
= 35025 seconds
= 14 seconds

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