Final answer:
After calculating Kiran's movements (15 km west, 20 km south, 25 km east, and 20 km north), Kiran ends up 10 km east of her starting point. The movements north and south cancel each other out, leaving us with the eastward displacement only.
Step-by-step explanation:
The question asks us to determine how far Kiran is from her home after a series of movements in different directions. We start with Kiran walking 15 km west from her house, then turning left to walk 20 km. Since she was initially walking west, a left turn would point her south, therefore she walks 20 km south. Next, she turns to the east and walks 25 km. Finally, she turns left again (now she is heading north), walking another 20 km.
To solve this, we can visualize Kiran's movements on a grid where her home is the starting point. She ends up 10 km east and 0 km north/south from her home (25 km east - 15 km west is 10 km east, and the 20 km south is canceled out by the 20 km north). Hence, the distance from her home is simply 10 km to the east, which means she is 10 km away from her house.