Eight persons, P, Q, R, S, T, U, V and W are sitting in a row. All of them are facing the north. Who is sitting at the extreme left end? Statements:
I. Three persons are sitting between P and Q, who is sitting second to the right of R. One person is sitting between P and
V.
II. Two persons are sitting between S and R. T is not sitting in the right of W.

Solution

From I . V ____ P ____    R    ____ Q …….. (I) R     _____   Q     ____   ____   _____ P ____ V …….. (II) R     _____   Q     ____   ____   V P …….. (II) Hence, the data in statement I alone is not sufficient to answer the question. From II. S    ___     ___ R Not much information is given. Hence, the data in statement II alone is not sufficient to answer the question. From I and II. Again there will be many possible cases. So, we cannot determine who is sitting at the extreme left end. Hence, the data neither in statement I nor II is sufficient to answer the question.