`` What does Joyce mean by , '' `` Stately , plump Buck Mulligan came from the stairhead , bearing a bowl of lather on which a mirror and a razor lay crossed . '' '' ? ''
A helicopter sets off from its base on a bearing of 090 for 30km . It then changes direction and flies for 50 km on a bearing of 200 . On what bearing and how far should the helicopter fly to return to its base ?