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Rajnish walks 12 kilometers towards north. From there he walks 8 kilometers towards south. Then he walks 3 kilometers towards east. How far and in which direction is he with reference to his starting point ?

Solution

✅ Correct Option: 4

Net northward displacement =12−8=4= 12 - 8 = 4 km; eastward displacement =3= 3 km.

Distance =42+32=5= \sqrt{4^2 + 3^2} = 5 km, and the final position lies north-east of the start.

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