Directions : Study the following information carefully and answer the questions given below:
8 persons A, B, C, D, E, F, G and H live in 2 different buildings Building X and Building Y. Both buildings have 5 floors each with ground floor numbered 1; floor above it numbered 2 and so on until topmost is numbered 5. One of the floors are vacant in each building. Only one person lives on each floor of the building X and building Y. No same number of floors are vacant. Only one person lives below E. At least one person lives between F and G. Number of persons above D is one more than the person below D. D lives in building Y. No one lives between F and B. G lives one of the floors below B. D lives immediately above G. No one lives between E and H and they both lives on odd numbered floor. F and A lives on the same numbered floor. C lives below A. 1st floor is not vacant in any of the building. B's and E's floor numbers are not same.
How many persons live between C and H?
  • a)
    3
  • b)
    1
  • c)
    2
  • d)
    None
  • e)
    Can't be determined
Correct answer is option 'B'. Can you explain this answer?

Related Test

Answers

Aadhar Academy
Jan 18, 2022
We Know that:
  • Number of persons above D is one more than below D. D lives in building Y and 1st floor is not vacant so D must live on 2nd floor.
  • D lives immediate above G. G must live on 1st floor in building Y.
  • Only one person lives below E and 1st floor is not vacant so we get 2 possibilities. Either E lives on 2nd or 3rd floor.
Case 1:
  • No one lives between E and H and they both live on odd numbers of floor. So this case gets rejected.
Case 2:
  • No one lives between E and H and they both live on odd numbers of floor. So H must live on 1st floor.
  • G lives one of the floors below B. it means B lives also in building Y and B's and E's floor numbers are not same. So B lives either 4thand 5th floor.
If B lives on 4th floor-
  • At least one person lives between F and G. it means F lives also in Building Y. A and C live in building X.
  • C lives below A. So C lives on 4th and A lives on 5th floor in building X.
  • No one lives between F and B. F and A live on the same number of floor. So F lives on 5th floor in building Y and 3rd floor of building Y is Vacant.
Here is the final table:
Only E lives between C and H.

We Know that: Number of persons above D is one more than below D. D lives in building Y and 1st floor is not vacant so D must live on 2nd floor. D lives immediate above G. G must live on 1st floor in building Y. Only one person lives below E and 1st floor is not vacant so we get 2 possibilities. Either E lives on 2nd or 3rd floor. Case 1: No one lives between E and H and they both live on odd numbers of floor. So this case gets rejected. Case 2: No one lives between E and H and they both live on odd numbers of floor. So H must live on 1st floor. G lives one of the floors below B. it means B lives also in building Y and B's and E's floor numbers are not same. So B lives either 4thand 5th floor. If B lives on 4th floor- At least one person lives between F and G. it means F lives also in Building Y. A and C live in building X. C lives below A. So C lives on 4th and A lives on 5th floor in building X. No one lives between F and B. F and A live on the same number of floor. So F lives on 5th floor in building Y and 3rd floor of building Y is Vacant. Here is the final table:Only E lives between C and H.
We Know that: Number of persons above D is one more than below D. D lives in building Y and 1st floor is not vacant so D must live on 2nd floor. D lives immediate above G. G must live on 1st floor in building Y. Only one person lives below E and 1st floor is not vacant so we get 2 possibilities. Either E lives on 2nd or 3rd floor. Case 1: No one lives between E and H and they both live on odd numbers of floor. So this case gets rejected. Case 2: No one lives between E and H and they both live on odd numbers of floor. So H must live on 1st floor. G lives one of the floors below B. it means B lives also in building Y and B's and E's floor numbers are not same. So B lives either 4thand 5th floor. If B lives on 4th floor- At least one person lives between F and G. it means F lives also in Building Y. A and C live in building X. C lives below A. So C lives on 4th and A lives on 5th floor in building X. No one lives between F and B. F and A live on the same number of floor. So F lives on 5th floor in building Y and 3rd floor of building Y is Vacant. Here is the final table:Only E lives between C and H.