A person boarded an express train on 29^th November, 2019 at Surat (Gujarat) for Nagarcoil (Kerala). The train departed from Surat at 19:45 hours and reached Nagarcoil at 11:45 hours on 1^st December, 2019. If the distance between Surat and Nagarcoil by train route is nearly 2120 km, the average speed of the train during this journey was