Naren starts from Point A and drives 7 km towards the west. He then takes a left turn, drives 5 km, turns left and drives 10 km. He then takes a left turn and drives 9 km. He takes a final left turn, drives 3 km and stops at Point P. How far (shortest distance) and towards which direction should he drive in order to reach Point A again? (All turns are 90° turns only unless specified.)

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  1. 2 km to the north
  2. 3 km to the north
  3. 1 km to the south
  4. 4 km to the south

Answer (Detailed Solution Below)

Option 4 : 4 km to the south
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Detailed Solution

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Given: 

Naren starts from Point A and drives 7 km towards the west.

He then takes a left turn, drives 5 km, turns left and drives 10 km.

He then takes a left turn and drives 9 km.

He takes a final left turn, drives 3 km and stops at Point P. 

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Thus, Naren should drive 4 km (9 km - 5 km) in the south direction in order to reach Point A again.

Hence, "Option 4" is the correct answer.

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