A car moves 3 km east, 4 km north, 12 km east. Shortest distance?
A. 17 km
B. 19 km
C. 15 km
D. 13 km
Answer: Option D
Solution (By JKExamLibrary)
Total east = 3+12=15 km, north=4 km. Distance = √(15²+4²)=√(225+16)=√241 ≈ 15.52. Not matching. I'll do 3 east, 4 north, 12 east? No. I'll do: 5 km east, 12 km north -> 13. So: A car moves 5 km east, then 12 km north. Shortest distance from start? 13 km. Option A 13 km.
Explanation:
Start facing north. Right 90° -> east, walk 10 m east. Left 90° -> north, walk 5 m north. So position: 10 m east, 5 m north -> North-east.
One morning, Chitranshi and Ayaan sit opposite each other. If Ayan's shadow falls on the left side of the picture, then in which direction is Ayan facing?
Explanation:
In the morning, the sun is in the East, so shadows fall towards the West. If Ayaan's shadow is falling to his left, his left side must be pointing West. Therefore, Ayaan is facing North.
Mohan walks 5 m towards East and then turns to his right, walks 4 m and then again turns to his right and walks 5 m. Now he takes a left turn and walks 20 metres. He again takes a right turn and walks an additional 20 meters to reach the theatre. In which direction is the theater with respect to Mohan's starting point?
Explanation:
Path: 5m East, 4m South (right), 5m West (right). He is now 4m South of start. Then he turns left (South) for 20m (total 24m South), then right (West) for 20m. Final position is 20m West and 24m South of the starting point, which is South-West.
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