Question: A running train crosses two men running in the same direction at a speed of 10 km/hr and 12 km/hr in 15 second and

A running train crosses two men running in the same direction at

A running train crosses two men running in the same direction at a speed of 10 km/hr and 12 km/hr in 15 second and 20 second respectively. What is the speed of train? 1. 22 km/hr 2. 25 km/hr 3. 18 km/hr 4. 12 km/hr 5. None of these

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