Starting from his house Arun moves 5 km to the north east and then 4 km towards south. He now moves 3 km towards east and then moves 8 km towards north to reach his friend’s house. Then his friend’s house is,
1
10 km north-east of Arun’s house
2
10 km south-east of Arun’s house
3
3 km north-east of Arun’s house
4
7 km north-west of Arun’s house