A man faces north. He turns 90° left, then 180° right. Which direction?
A. North
B. South
C. East
D. West
Answer: Option B
Solution (By JKSSB Mock Tests)
N left 90° = West, right 180° = East? Wait: West (270°) + 180° = 90° East? Actually 270°+180°=450°=90° East. So East. Option B. I'll recalc: North -> left 90° -> West. Then 180° right from West: West (270°) +180° clockwise = 450° mod 360 = 90° East. So East. Answer East.
Swetha starts from her office and walks 150 m towards south, then she turns right and walks 80 m and then she turns left and walks 60 m. She finally turns left and walks 280 m to reach a bank. What is the shortest distance between her office and the bank?
Explanation:
Vertical movement: 150 m South + 60 m South = 210 m South. Horizontal movement: 80 m West, then 280 m East = 200 m East. The shortest distance is the hypotenuse: √(210² + 200²) = √(44100 + 40000) = √84100 = 290 m.
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