At 14 42, Elyse started driving at 74 km/h from her home to a hospital 37 km away. She was at the hospital for 2 h 41 min.
- What time did she leave the hospital?
- After leaving the hospital, Elyse drove back along the same route and took 30 min to reach home. What was her average speed, in km/h, for the journey home?