A Express train covers a distance of 3584 km in 2 days 8 hours. If it covers 1440 km on the first day and 1608 km on the second day, by how much does the average speed of the train or the remaining part of the journey differ from that for the entire journey?
1
3 km/hrs
2
2 km/hrs
3
4 km/hrs
4
10 km/hrs