Question

Seven persons, S, T, U, V, W, X and Y live on the different floors of a building, where the bottommost floor is 1 and the floor above it is 2 and so on. Two persons live between X and W, who lives just above Y. T lives 2nd to the above of V, who doesn’t live on the bottommost floor. S lives above U, who doesn’t live on an even numbered floor. S does not live at topmost floor. How many persons live between W and U?

A 1
B 3
C 4
D 2
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