drives 5 km, turns left and drives 30 km. He then takes a right turn and drives 8 km. He takes a final right turn, drives 10 km and stops at Point Q. How far (shortest distance) and towards which direction should he now drive to reach Point A again? (All turns are 90° turns only.)
- A13 km towards Eastपूर्व की ओर 13 km
- B5 km towards Westपश्चिम की ओर 5 km
- C13 km towards Westपश्चिम की ओर 13 km
- D8 km towards Westपश्चिम की ओर 8 km
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Concept: Take A as (0, 0), East , North , and trace the drive.
- South 20: ; left (East) 5: .
- Left (North) 30: ; right (East) 8: .
- Right (South) 10: = Q.
- Q is 13 km due East of A, so he must drive 13 km towards West.
Trick: Net N–S ; net E–W East → return 13 km West.
Answer: (C) 13 km towards West
अवधारणा: A को (0, 0) मानें, पूर्व , उत्तर , और यात्रा ट्रेस करें।
- दक्षिण 20: ; बाएँ (पूर्व) 5: ।
- बाएँ (उत्तर) 30: ; दाएँ (पूर्व) 8: ।
- दाएँ (दक्षिण) 10: = Q।
- Q, A से 13 km ठीक पूर्व में है, अतः 13 km पश्चिम की ओर जाना होगा।
ट्रिक: कुल उत्तर-दक्षिण ; कुल पूर्व → वापसी 13 km पश्चिम।
उत्तर: (C) 13 km पश्चिम की ओर
