At 11 34, Zoe started driving at 54 km/h from her home to a bistro 45 km away. She was at the bistro for 1 h 20 min.
- What time did she leave the bistro?
- After leaving the bistro, Zoe drove back along the same route and took 25 min to reach home. What was her average speed, in km/h, for the journey home?