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:

Given

• Equal lengths = L (each)
• Speeds = 46 km/h and 36 km/h (same direction)
• Overtake time = 36 s

ComputeRelative speed = (46 − 36) km/h = 10 km/h = 10 × (5/18) = 2.7778 m/sDistance to overtake = L + L = 2L2L = 2.7778 × 36 = 100 ⇒ L = 50 m