14 A boy boarded a train on 30th June 2019 at Madgaon for Nagarcoil. The train departed at 09:45 hours from Madgaon and reached Nagarcoil at 07:15 hours on the next day. If the distance covered by the train during this time interval is 1140 km, the average speed of the train was
1. 57 km/h
2. 51.5 km/h
3. 53 km/h
4. 54.5 km/h