A, B, C and D live in a building which has 14 floors. A lives two floors above B. C lives on the 14th floor immediately above A. D neither lives immediately above nor immediately below B. The first 7 floors of the building are vacant. On which of the following floors does D live?
Cannot be determined
Given that the first 7 floors of the building are vacant.
14thC13thA12th11thB10th9thD8thD1 to 7thVacant
Also given that D neither lives immediately above nor immediately below B. So D does not live in 10th or 12th floor but for 9th and 8th floor it is not clear that in which one he lives. So the answer cannot be determined.