Exams › IBPS PO › Reasoning

There are eight persons, M, N, O, P, Q, R, S and T, living in an eight-floor building. The lowermost floor is numbered 1, the floor above it is numbered 2, and so on up to the topmost floor numbered 8. All the information is not necessarily in the same order. Only two persons live below S. N lives three floors above M. Three persons live between N and P. R does not live above O. Q lives just below P. One person lives between S and M. At least three persons live between Q and T. On which floor does T live?

1. 3rd
2. 2nd
3. 4th
4. 1st

Correct answer: 2nd

Solution

Only two persons live below S, so S is on the 3rd floor. One person lives between S and M, so M is on the 5th floor, and N is three floors above M, so N is on the 8th floor. Three persons live between N and P, so P is on the 4th floor and Q on the 3rd floor; then at least three persons between Q and T forces T to be on the 2nd floor.

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