Two trains of lengths 150 m and 250 m run on parallel lines. When they run in the same direction, they take 20 seconds to cross each other and, when they run in the opposite direction, they take 5 seconds to cross each other. What is the speed of the two trains?
1
150 km/h and 105 km/h
2
150 km/h and 250 km/h
3
180 km/h and 108 km/h
4
160 km/h and 106 km/h