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Q: Oliver departs from his office, and walks 20 m towards north. Then he turns left, and walks 50m. He turns left again, and walks 40m. Then he turns right, and walks 10m. How far is he from the pillar which exactly 60 m west of his office? (Assuming that all turns are only 90º degree.)
  • A. 20 m
  • B. 15 m
  • C. 40 m
  • D. 30 m
Correct Answer: Option A -
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Explanations:

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