1003197403

Level: 
Project ID: 
1003197403
Accepted: 
1
Clonable: 
1
An express train of length 150m travels at the constant speed of 144kph. On a parallel track in the opposite direction travels a freight train of length 240m at the constant speed of 90kph. How long does it take for trains to pass each other?
6s
1.6s
7.2
26s