Six persons R, S, T, U, V and W live on each floor of a six-storey building. The bottommost floor is numbered as 1 while the topmost floor is numbered as 6. Who lives just above V’s floor?
I. W lives two floors above T’s floor. V lives on the bottommost floor. U lives just above R’s floor.
II. R lives three floors above T’s floor. S lives two floors above V’s floor. V and R do not live on adjacent floors. There is at most one floor between U’s and W’s floor.

From statement I, Now, W lives two floors above T’s floor. V lives on the bottommost floor. U lives just above R’s floor. So, we have two cases, So, either R or T is just above V’s floor. Therefore, statement I alone is not sufficient.From statement II, Now, R lives three floors above T’s floor. S lives two floors above V’s floor. V and R do not live on adjacent floors. There is at most one floor between U’s and W’s floor. So, the table is shown below, So, T lives just above V’s floor.Therefore statement II alone is sufficient to answer the question.