Q:

A man walks 5 km towards the north. From there he turns right and walks 15 km. Then he turns back and walks 20 km. From there he turns to left and walks 20 km. Finally, he turns to left and walks 5 km. How far and in which direction is he with reference to his starting point?

• 1
  15 km. South
• 2
  13 km. North
• 3
  15 km. East
• 4
  10 km. North