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Answer

Correct Option is None of these

Solution:(i) R lives at 4th floor. Two persons live between R and Q. Q lives below R. Two persons live between T and P who lives above R. Neither P nor T live at topmost floor. There are two possibilities-
(ii) S live immediately above U. W lives above U. Hence case-1 will be eliminated and in case-2 W lives on topmost floor and V lives on third floor. The final arrangement is-

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