Question
Who among the following lives two floors above the floor
on which B lives in the same flat? 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 – 1 is in west of flat – 2 and flat – 2 is in west of flat – 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. P’s flat is immediately above C’s 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 – 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 – 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 –1. 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 – 3: 
Case II: When C and P live on flat – 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: 
- A cyclist starts from village 'M' at 8:00 AM towards village 'N' at 20 km/h. A biker starts from 'M' at 9:30 AM in the same direction at 60 km/h. Find the ...
- A boy standing on a hill hears the echo of a shot from a nearby cliff located 2.5 km away, after 28 seconds. Determine the approximate speed at which sound...
It takes 12 hours less to travel from point 'C' to point 'D' at a speed of 50 km/h than it takes to travel the same distance at 20 km/h. If 50% of the d...
The speeds of Car 'A' and Car 'B' are 25 km/hr and 45 km/hr, respectively. If Car 'A' covers a distance that is 36 km shorter tha...
- Ravi started jogging from point X at 12 m/s. 10 seconds later, Sunil began running from the same point in the same direction and managed to catch Ravi in 3...
The speed of a train is 90 km/hr and it takes 16 seconds to cross a man. Find the time taken by train to cross a platform if the ratio of the length of ...
A motor-cycle covers 110 km with a speed of 45 km/hr. find the speed of the motor-cycle for the next 110 km journey so that the average speed of the who...
- 'C' takes 50 minutes more than 'D' to cover 'x' km. If the speed of 'C' and 'D' is 8 km/h and 10 km/h, respectively, find the value of 'x'.
Train P starts from Lucknow to Dehradun at 11:55 am with an average speed of 30 m/s. Train Q starts from Dehradun to Lucknow at 1:35 pm with an average ...
Walking 3/4 of his normal speed, Ravi was 21 minutes late in reaching his office. The usual time took to cover the distance between his home and office ...
Relevant for Exams:
