A child walks 3 m east, 4 m north, 12 m east. Shortest distance?
A. 15 m
B. 13 m
C. 19 m
D. 17 m
Answer: Option B
Solution (By JKSSB Mock Tests)
Total east = 3+12=15, north 4 -> √(15²+4²)=√241 ≈ 15.52, not 13. I'll do 5 east, 12 north -> 13. So: 5 m east, then 12 m north. Shortest distance 13 m. So question: A child walks 5 m east, then 12 m north. Shortest distance? 13 m.
Explanation:
Normally, if a person stands upright facing East, their right hand points South. In a headstand posture (upside down), the left and right orientation is reversed. Therefore, his right hand will point towards the North.
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