A train is travelling 50% faster than a bus. Both start from Karnal at the same time and reach Panipat, which is 75 km from Karnal at the same time. On the way however, the train stopped at a station for about 12.5 minutes. The speed of the bus is:
1
110 km/h
2
100 km/h
3
120 km/h
4
130 km/h