Seven persons L, M, N, O, P, Q and R live on the different floors of a building, where the bottommost floor is 1 and the floor is 2 and so on. Who lives on the topmost floor?
Statement I: Three persons live between L and R, who lives second to the below of M. P lives above B.
Statement II: One person lives between P and Q. O lives immediately above R, who lives above N.
From statement I and statement II alone, we cannot answer the question. On combining both statement we get, Three persons live between L and R, who lives second to the below of M. P lives above M. One person lives between P and Q. O lives immediately above R, who lives above N. The final arrangement is as follows: Either P or Q lives on the topmost floor. Therefore, both statements I and II together are not sufficient to answer the question.
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