A person walks 20 m in the east. Walked and turned 90° clockwise and walked 20 m. walked. From there he again turns to his left and walks 10 m. Then he turned 90° anticlockwise and walked 20 m. walked. How far and in which direction is he from the starting point? MCQ with Answer and Explanation
A person walks 20 m in the east. Walked and turned 90° clockwise and walked 20 m. walked. From there he again turns to his left and walks 10 m. Then he turned 90° anticlockwise and walked 20 m. walked. How far and in which direction is he from the starting point?
A. 30 m. North
B. 30 m. South
C. 30 m. East
D. 25 m. East
Answer: Option C
Solution (By JKExamLibrary)
Walks 20 m East. Turns 90° CW (South) for 20 m. Turns left (East) for 10 m. Turns 90° CCW (North) for 20 m. The 20 m South and 20 m North cancel each other. Total horizontal distance = 20 m East + 10 m East = 30 m East.
A boy facing east turns to his right and walks 20 metres. Then he turns to his left and walks 15 metres. After this he walks 25 meters while facing west. He then turns to his right and walks 20 metres. At what distance is he now from his initial position?
Explanation:
He turns right (facing South) and walks 20 m. Turns left (facing East) and walks 15 m. Faces West and walks 25 m, making him 10 m West of his starting longitude (15 - 25 = -10). He turns right (North) and walks 20 m, returning to his starting latitude. He is 10 m West of the start.
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