A tourist boarded a train on 16.10.2021 from Udupi for Surat. The train departed from Udupi at 20:20 hours and reached Surat at 16:20 hours on the next day i.e., 17.10.2021. If the distance between the two city stations is 1080 km, the average speed of the train during the journey of the tourist was:
1
10 m/s
2
15 m/s
3
20 m/s
4
36 km/hr