Lopa and Kritika are sitting facing each other at the time of sunset. If Lopa's shadow falls on the right side of Kritika, then in which direction is Kritika facing? MCQ with Answer and Explanation
Lopa and Kritika are sitting facing each other at the time of sunset. If Lopa's shadow falls on the right side of Kritika, then in which direction is Kritika facing?
A. West
B. South
C. North
D. East
Answer: Option C
Solution (By JKExamLibrary)
At sunset, sun is in the west, shadows fall east. Lopa's shadow falls on Kritika's right. For Kritika's right to be east, Kritika must be facing north. (Lopa then faces south, and her shadow east falls on Kritika's right side.)
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?
Explanation:
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.
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.
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