You are driving a bus used in the occasional carriage of passengers. After 4 1/2 hours of continuous driving, for how long must the driving time be interrupted, before you can continue driving again?

You are driving a bus used in the occasional carriage of passengers. After 4 1/2 hours of continuous driving, for how long must the driving time be interrupted, before you can continue driving again? Practice this and other German driving theory questions for your driving license.