Certain number of persons are sitting in a row facing north. Who among the following sits immediate right of R?
I. Only three persons sit between P and S who sits one of the ends. Q sits third to the right of R who is not an immediate neighbour of U.
II. R sits fourth to the right of
V. T sits second to the left of Q who sits one of the extreme ends. U neither immediate neighbour of V nor T.

From I. P             ___        ___        ___        S…….(i) S              ___        ___        ___        P …….(ii) Hence data in the statement I alone is not sufficient to answer the question. From II. V             ____     ____     ____     R             T              ___        Q             Hence data in the statement II alone is not sufficient to answer the question. From I and II. S    V    ____     U   P    R     T      ___        Q             T sits immediate right of R. Hence data in the both statement I and II are sufficient to answer the question.