Civil Service Exam Reviewer · Logical Reasoning · hard
Dodong starts at the church in the town proper, walks 9 km north, then turns right and walks 12 km, then turns right and walks 9 km, then turns left and walks 12 km, and finally turns right and walks 7 km. How far and in which direction is Dodong from the starting point?
- 49 km southeast
- 25 km northwest
- 25 km southeast
- 25 km southwest
Answer
C. 25 km southeast
Solution
Adding up the legs: the net east–west movement is 24 km east, and the net north–south movement is 7 km south. Distance = √(24² + 7²) = 25 km, toward the southeast.
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