At 19 54, Cindy started driving at 80 km/h from her home to a boutique 40 km away. She was at the boutique for 2 h 33 min.
- What time did she leave the boutique?
- After leaving the boutique, Cindy drove back along the same route and took 32 min to reach home. What was her average speed, in km/h, for the journey home?