The Distance From Naogaon to Nachole is 100 km and Nachole to Rajshahi is 120 km. A Bus goes from Naogaon to Nachole at 120 km/hr speed and Nachole to Rajshahi at 100 km/hr speed. What is the average speed of the bus while going from Naogaon to Rajshahi via Nachole? (BCIC-16)