Here is part of an express coach timetable to a university campus.
| Coach Depot | 0640 | 0655 | 0710 | 0725 | 0740 |
| Market Square | 0647 | 0702 | 0717 | 0732 | 0747 |
| High Street | 0656 | 0711 | 0726 | 0741 | 0756 |
| Green Park | 0659 | 0714 | 0729 | 0744 | 0759 |
| Science Block | 0709 | 0724 | 0739 | 0754 | 0809 |
| Humanities Block | 0712 | 0727 | 0742 | 0757 | 0812 |
| Student Union | 0713 | 0728 | 0743 | 0758 | 0813 |
A coach leaves the Depot at 0710, how many minutes does this coach take to reach the Student Union?
Liam needs to get from Green Park to the Student Union for a lecture at 08:30 am.
It takes Liam 18 minutes to walk from his house to the Green Park stop.
It takes Liam 5 minutes to walk from the Student Union stop to his lecture hall.
What is the latest time Liam can leave his house to get to his lecture on time?
