If a boy moves from his house to his school that is 20m from his home towards south. He goes in the north direction thinking it south direction and walks for 20 m, until he realizes his mistake. How much more distance and in which direction he must walk in order to reach the actual destination?
1
40 m in Southeast direction
2
20 m in South direction
3
40 m in South direction
4
60 m in North direction