Comprehension Passage
Direction: Study the following information carefully and answer the question given below.
Priya is at point P and is facing towards north. She started walking straight from point P and walked 50 km to reach a point Q. From Q she has taken a right turn and walked 30 km to reach a point R, and again took a right turn and walked 40 km to reach S. She then took a left turn from S and walked 20 km to reach T. From T she walked 10 km towards the south to reach U.
What is the shortest distance between point Q and S?
1
40 km
2
40\(\sqrt{10} \) km
3
50 km
4
50\(\sqrt{10} \) km
5
60 km