Q169
ReasoningDirection Sense
A man started walking towards south. After moving 4 km he turned towards east and walked 6 km. Again he turned towards north and walked 12 km. How far is he from the starting point?
- a.18 km
- b.14 km
- c.10 km
- d.22 km
Answer: (C) 10 km
Using coordinate geometry: Start at (0,0). South 4km → (0,−4). East 6km → (6,−4). North 12km → (6,8). Distance from origin = $\sqrt{6^2 + 8^2} = \sqrt{100} = 10$ km.