Question
Which of the following Flat is
vacant? Answer the questions based on the information given below. Eleven persons A, B, C, D, P, Q, R, S, X, Y and Z live in four storey building having four floors such that lowermost floor is numbered as 1 and floor immediately above the lowermost floor is numbered as 2 and so on. Each floor has 3 flats numbered as 1, 2 and 3 from west to east such that flat β 1 is in west of flat β 2 and flat β 2 is in west of flat β 3. One of the flats on a floor is vacant. The dimensions of each of the flats are same. Note: If there is one/two floor(s) between two flats then they may or may not have the same flat number of different floors. Z lives in an even numbered flat on floor number 2. B and C live on same floor. B lives in an even numbered flat on lowermost floor. R and A live on same floor. All the flats on the floor on which Q lives are occupied. X lives to the west of R. B lives on the floor on which two other persons live. There is one floor between R and Q. Pβs flat is immediately above Cβs flat and the numbers of their flats is same. R lives immediately below the vacant flat and the flat number of vacant flat and R is same. D lives somewhere above Y in same flat number, but not on flat 3.A lives in flat β 1.Solution
B lives in an even numbered flat on lowermost floor i.e. B lives on floor ground floor in flat 2. Z lives in an even numbered flat on floor number 2. B and C live on same floor. P lives immediately above C and the numbers of their flats is same. So, Now, C either lives immediate west or east of B which means P either lives in flat 3 or flat 1. So, we have two possibilities. Case I: When C and P live on flat β 3:
Case-2 When C and P live on Flat-1
R and A live on same floor. X lives to the immediate west of R. R lives immediately below the vacant flat and the flat number of vacant flat and R is same. A lives in flat β1. There is one floor between R and Q. Now, R lives immediately below vacant flat so, the vacant flat must be in topmost floor. Case I: When C and P live on flat β 3:
Case II: When C and P live on flat β 1
D lives somewhere above Y in same flat number, but not on flat 3. Now, we cannot fix D and Y in same flat number in case II, so, case II is invalid. The final arrangement is as follows: 
Recently Meta CEO, Mark Zuckerberg announced the global roll out of a 32-person video calling feature called ______ on WhatsApp?
Who replaced Hari Babu Kambhampati as the Governor of Mizoram?
Who has been chosen as one of the flag bearers for India at the Paris 2024 Olympics Closing Ceremony alongside PR Sreejesh?
Union Minister of State (Independent Charge) Science & Technology, Dr. Jitendra Singh inaugurated the 7th edition of India International Science Fes...
Who has become the first unseeded female player to win the Wimbledon Grand Slam?
The book "The Origin of Species" was written by which scientist?Β
When did the RBI launch the retail pilot of the e-rupee, according to the digital currency sandbox details?
- Which organization has elected India as its Vice President in 2025?
Which Indian archer won gold in the Womenβs Compound event at the 2025 Archery World Cup in Shanghai?Β
Petteri Orpo has been elected as the new Prime Minister of which country?