Raj starts from point A and walks 7kms towards West direction. He then takes a left turn and walks 11kms, turns left and walks 11kms, turns left and walks 7kms. He then takes the final left turn,…
Question and options
Raj starts from point A and walks 7kms towards West direction. He then takes a left turn and walks 11kms, turns left and walks 11kms, turns left and walks 7kms. He then takes the final left turn, walks 4kms and stops at point B. How far (shortest distance) and towards which direction should he drive in order to reach Point A again? (All turns are 90 degrees turns only unless specified)
- 3 kms towards South
- 4 kms towards North
- 4 kms towards South
- 3 kms towards North
Answer and explanation
Correct answer: B - 4 kms towards North
Take A=(0,0). West 7 -> (-7,0); left (south) 11 -> (-7,-11); left (east) 11 -> (4,-11); left (north) 7 -> (4,-4); left (west) 4 -> (0,-4)=B. A is 4 km due North of B.
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