General Studies · Seating Arrangement

Read the following information carefully and answer the question given below. Eight persons - Arun, Renu, Keerthi, Balaji, Abarna, Senthil, Ajitha, and Rajesh sit in a row having chairs numbered 1 to 8 in ascending order from left to right. They all are facing north. Keerthi sits on chair number 6. There are exactly two persons between Keerthi and Arun. Renu and Rajesh always sit adjacent to each other. Ajitha sits adjacent to neither Arun nor Keerthi. Abarna never sits on an odd-numbered chair. Neither Renu nor Rajesh sits on chair number 4. There is only one person between Senthil and Renu. Abarna sits to the right (not necessarily immediate right) of Balaji, and Balaji never sits adjacent to Senthil. How many persons sit between Renu and Arun?