Answer:
The conference scheduled in Birmingham will start at 10.30 am.
She must depart her house by 08.00 am.
Step-by-step explanation:
Because
• The journey to Euston Rail Station takes about an hour, meaning she will arrive at the station by 09.00 am.
• Trains to Birmingham are available at: 5 minutes, 25 minutes, and 45 minutes past the hour. Thus, she will take the train at 9.05 am.
• The train ride from Euston to Birmingham lasts approximately 1 hour and 10 minutes, allowing her to arrive at Birmingham station by 10.15 am.
• A quick 5-minute walk from Birmingham station to the meeting location means she will get there by 10.20 am.
This allows for a 10-minute buffer before the meeting starts, giving her some time to prepare.
Note:
If she needed to leave by 8.10 am, she would reach the station at 9.10 am and catch the train at 09.25 am, which would result in her arriving late by about 10 minutes for the meeting.