Caleb's parent drove him to a swim meet 208 km away. It took them 2 hours, which included a 15-minute break to refuel. What was their average driving speed?
NB – The driving speed does not factor in the stop time
Distance covered =208 km
Driving time is 2 hours (120 minutes) – 15 minutes
Driving Speed = 105 minutes
Driving Speed in hours = 1.75 hours
Speed = Distance/Time
Average driving speed = 208 ÷ 1.75
Average driving speed = 118.86 KPH