Comprehension Passage
Direction: Read the following information carefully and answer the question that follows.
A certain number of persons are sitting in a row facing north. O is sitting in the middle of the row. Four-person is sitting between the P and T and both do not sit at extreme end of the row. S sits three-places away to the left of T. J sits to the immediate right of K. Three persons are sitting between P and K. P is sitting third from one of the ends. X sits at the extreme left end of the row. Five persons are sitting between S and X.
How many seats are there in the row?
1
17
2
19
3
20
4
23
5
15