The speed of the train can be calculated using the formula:

Speed=DistanceTime\text{Speed}=\frac{\text{Distance}}{\text{Time}}Speed=TimeDistance​

Here, the distance traveled is 100 km and the time taken is 2 hours. So,

Speed=100 km2 hours=50 km/h\text{Speed}=\frac{100\text{ km}}{2\text{ hours}}=50\text{ km/h}Speed=2 hours100 km​=50 km/h

Therefore, the speed of the train is 50 km/h.