A boy walks 3 km towards the north, then 4 km towards the east, and finally 3 km towards the south. How far is he from his initial position?
Q1. A boy walks 3 km towards the north, then 4 km towards the east, and finally 3 km towards the south. How far is he from his initial position?
Answer: 4 km
Explanation: The boy walks 3 km north and 3 km south, so these cancel out. He is 4 km east.