Question and Answer

Q: A girl starts driving from her home, and goes 10 km south. Then turns left and goes 20 km. Then she turns left and goes 20 km and Again turning to her left she goes 5 km. She takes a last left turn goes 10 km and stops at her final destination. How far and in which direction should she drive to reach her home? (Assuming that all turns are only 90º)