Sneha and Rahul start from the same gate. Sneha walks 5 km north, turns right and walks 3 km. Rahul walks 3 km south, turns left and walks 9 km. How far apart are they now?

Explanation

1. 01

   Sneha: right from north is east, so she is 3 km east and 5 km north of the gate.

2. 02

   Rahul: left from south is east, so he is 9 km east and 3 km south.

3. 03

   Gap: east–west $9 - 3 = 6$ km; north–south $5 + 3 = 8$ km.

4. 04

   Distance $= \sqrt{6^2 + 8^2} = 10$ km.