Jadeja 3 km towards north. After walking turns to the left and walks 7 km. Walks, then turns left and walks 6 km. Walks and then turns left and walks 7 km. And it goes on. In which direction is Jadeja facing? MCQ with Answer and Explanation
Jadeja 3 km towards north. After walking turns to the left and walks 7 km. Walks, then turns left and walks 6 km. Walks and then turns left and walks 7 km. And it goes on. In which direction is Jadeja facing?
A. West
B. East
C. South
D. North
Answer: Option B
Solution (By JKExamLibrary)
Starts North. 1st left turn = West. 2nd left turn = South. 3rd left turn = East. Jadeja is facing East.
An insect can walk in both forward and reverse directions. He walks forward for 3 minutes and then reverse for 2 minutes. He walks at the speed of 5 meters per minute. In what minimum time will he be able to cover 105 metres?
Explanation:
In one 5-minute cycle, the insect walks 15m forward and 10m reverse, yielding a net progress of 5m per cycle. After 18 cycles (90 minutes), it has advanced 90m. In the next 3 minutes, it walks continuously forward at 5m/min, covering 15m. 90m + 15m = 105m. Total time = 90 + 3 = 93 minutes.
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.
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