There are two main station in a city P and Q at a certain distance. Amit left station P and walked 20m towards east and then taken right turn and walked 10m and then turned left walked about 10m and reached in the gym. Ashish left from Q station walked 20m towards west and then walked 10m after turning to his left, and reached at a temple. From the temple ashish turned left walked 20m. If the temple is 50m east of the gym. What is the distance between station P and Q?