- AU
- BV
- CW
- DT
Step-by-Step Solution
Original bottom to top: 1-W, 2-X, 3-U, 4-Y, 5-T, 6-V. After V<->W swap, floor 6 becomes W. The T<->U swap affects floors 5 and 3 only. So the topmost floor is now occupied by W.
Answer: C) W
Six persons — T, U, V, W, X and Y — live on six different floors of a building, floor 1 being the lowest and floor 6 the topmost. W lives on the lowest floor. V lives on the topmost floor. T lives immediately below V. X lives immediately above W. Y lives immediately above U. U lives on an odd-numbered floor. If V and W interchange their floors, and T and U interchange their floors, who then lives on the topmost floor?
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