A and B are standing at a distance of 20 km from each other on a straight road running East-West. From there they start moving towards east and west at the same time. After covering a distance of 5 km, A turns to his left and walks 10 km, while B after covering a distance of 5 km turns to his right and walks 10 km. After that both turn to their left and cover a distance of 5 km. What is the distance between them now? MCQ with Answer and Explanation
A and B are standing at a distance of 20 km from each other on a straight road running East-West. From there they start moving towards east and west at the same time. After covering a distance of 5 km, A turns to his left and walks 10 km, while B after covering a distance of 5 km turns to his right and walks 10 km. After that both turn to their left and cover a distance of 5 km. What is the distance between them now?
A. 20 km
B. 5 km
C. 10 km
D. 25 km
Answer: Option C
Solution (By JKExamLibrary)
Assume A at (0,0), B at (20,0). A moves east 5 → (5,0); left (north) 10 → (5,10). B moves west 5 → (15,0); right (north) 10 → (15,10). Both turn left (west) 5: A → (0,10), B → (10,10). Distance = 10 km.
A woman starts from a point and walks 15 m. Goes south. She turns left and walks 12 m. It moves Then she takes a right turn and walks 5 m. At the end of running, she turns and walks 20 m. It moves How far is he from the starting point?
Explanation:
She goes 15 m South, then 12 m East (left turn), then 5 m South (right turn). Total South = 20 m. When she turns and walks 20 m (implying a 180° turn to go North), the 20 m North cancels out the 20 m South. She is left exactly 12 m East of the starting point.
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