Two trains of equal length are running on parallel lines in the same direction at 46 km/hr and 36 km/hr. The faster train passes the slower train in 36 seconds. The length of each train is: A. 45 B. 50 C. 60 D. 80 Answer Workspace Report Discuss Answer with explanation Answer: Option B Explanation Let the length of each tain be x metres. Then, distance covered = 2x metres. Relaive speed = (46 – 36) km/hr = [10 x 5/18] m/sec = [25/9] m/sec. ∴ 2x/36 = 25/9 ⇔ 2x = 100 ⇔ x = 50. Workspace
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