CA Foundation · Quantitative Aptitude · Direction Tests
A man walks 5 km east, then 12 km north, then 5 km west. How far is he from the starting point, and in which direction is he from it?
He is 12 km from the start, towards the north. The eastward 5 km and westward 5 km cancel each other, so only the 12 km northward movement remains as the net displacement. The figure 22 km is just the total path length walked.
- A12 km, northCorrect
- B22 km, north
- C10 km, north-east
- D17 km, north-west
Explanation
The 5 km east and 5 km west cancel, leaving a net movement of 12 km north. So displacement is 12 km towards the north. The 22 km figure is the total distance walked, which is not the displacement.
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