Srinija walked 9 km west from her home, then turned south and walked 11 km. Then she walked 13 km towards east and finally 4 km towards west. Now at what distance is Srinija from its initial position? MCQ with Answer and Explanation
Srinija walked 9 km west from her home, then turned south and walked 11 km. Then she walked 13 km towards east and finally 4 km towards west. Now at what distance is Srinija from its initial position?
A. 11 km
B. 10 km
C. 15 km
D. 13 km
Answer: Option A
Solution (By JKSSB Mock Tests)
Net east-west: 9 km west + 13 km east = 4 km east; then 4 km west = 0. Net north-south: 11 km south. Distance = 11 km.
Explanation:
Path forms a right-angled triangle with sides 15 km (East) and 8 km (South). Shortest distance = √(15² + 8²) = √(225 + 64) = √289 = 17 km.
Facing west, Priya walks for 20 metres, then turns left and walks for 40 metres. She then turns left and walks for 20 metres. After this she turns right and walks 20 meters and reaches the park. At what distance and in which direction is the park from the starting point?
Explanation:
West 20 m. Left (South) 40 m. Left (East) 20 m. She is back on the initial vertical line but 40 m South. Then right (South) 20 m. Total distance is 40 + 20 = 60 m South.
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