At 16 45, Tammy started driving at 90 km/h from her home to a bakery 45 km away. She was at the bakery for 1 h 25 min.
- What time did she leave the bakery?
- After leaving the bakery, Tammy drove back along the same route and took 20 min to reach home. What was her average speed, in km/h, for the journey home?