At 19 36, Sabrina started driving at 52 km/h from her home to a boutique 39 km away. She was at the boutique for 2 h 26 min.
- What time did she leave the boutique?
- After leaving the boutique, Sabrina drove back along the same route and took 36 min to reach home. What was her average speed, in km/h, for the journey home?