Direction: In the following question, a given questions is followed by information in three statements. You have to decide the data in which statement (s) is sufficient to answer the question and mark your answer accordingly.

Certain number of Persons are sitting in the row and facing north. How many persons are sitting between R and K?

I. R is 6th from the right end of the row.

II. R sits 5th to the right of J.

III. J is 6th from the left end of the row and also 7th to the left of K.