(UK St Paul's Girls School Sample Paper Section $A$ Question $$14$$)  Abigail gets up at $07:40$ in the morning.  $25$ minutes later she starts her breakfast. which takes $10$ minutes to finish.  She then leaves for school. Her journey takes $35$ minutes in total.  She arrives $5$ minutes late for registration.  At what time is registration? 
Overseas Competition->Knowledge Point->Combinatorics->Time Problem->Time Calculation