At 17 25, Xandra started driving at 56 km/h from her home to a bakery 42 km away. She was at the bakery for 1 h 39 min.
- What time did she leave the bakery?
- After leaving the bakery, Xandra drove back along the same route and took 45 min to reach home. What was her average speed, in km/h, for the journey home?