Mridul starts from Point A and drives 17 km towards the west. He then takes a left turn, drives 15 km, turns left and drives 20 km. He then takes a left turn and drives 22 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.)

Given:

Mridul starts from Point A and drives 17 km towards the west.

He then takes a left turn, drives 15 km, turns left and drives 20 km.

He then takes a left turn and drives 22 km.

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

From the above information following path diagram will be - 

7 km South direction should he drive in order to reach Point A again.

Correct answer is (b) 7 km to the south.