A person walks 15 km south, then 8 km west, and finally 15 km north. What is his final position relative to the starting point?
Q1. A person walks 15 km south, then 8 km west, and finally 15 km north. What is his final position relative to the starting point?
Answer: 8 km west
Explanation: The person is 8 km west of the starting point, as the south and north distances cancel out.