Read the given information carefully and answer the questions given below:

Sixteen persons i.e. A, B, C, E, N, O, P, Q, R, S, T, U, V, W, X and Y live in two different flats i.e., Flat 1 and Flat 2 of a four-floor building such that the lowermost floor is numbered as 1 and the floor just above it is 2 and so on till the topmost floor is numbered as 4. Flat1 is to the west of flat 2 whereas flat 1 of floor 2 is immediately above flat 1 of floor 1 and flat 2 of floor 2 is immediately above flat 2 of floor 1. There are eight married couples and each married couple live together on the same floor in the same flat. Name of the person starts with vowel are female and live on an even numbered floor. All the information is not necessarily in the same order.

A lives just above P’s spouse flat. A’s spouse lives in an odd numbered flat. O and Q live on the same floor. T lives to north east of U and he lives below E. Q doesn’t live in the same flat as E. B who lives on an even numbered floor lives two floors above N. S lives to the south west of B but she doesn’t live below N. R lives to the north of X. R is not married to A. Spouse of X lives to the east of Y. C is spouse of neither Y nor X. V and U lives in the same flat and both have same gender. W’s gender is same as Q’s gender.

In which of the following flat and floor does S live?

The correct answer is Flat 1, floor 3.

Step-by-Step Explanation:

1. Identify the basic structure and rules:

• Building layout: 4 floors (1 to 4) × 2 flats (Flat 1 to the West, Flat 2 to the East) = 8 flat slots in total.
• There are 16 persons forming 8 married couples (2 persons per flat).
• Persons whose names start with a vowel (A, E, O, U) are females and must live on an even-numbered floor (Floor 2 or Floor 4).

2. Determine the positions of the females (vowels):

• A’s spouse lives in an odd-numbered flat: Since married couples live together, A (female) also lives in Flat 1 (odd-numbered flat). Thus, A lives on an even floor in Flat 1.
• T lives to the north-east of U and below E:
- U is a vowel (female), so U must be on an even-numbered floor (Floor 2 or 4). Since T is to the north-east of U, U must be in Flat 1 and on a lower floor than T. Thus, U lives on Floor 2, Flat 1.
- Since T lives below E (vowel/female on an even floor), E must be on Floor 4.
- Since T is to the north-east of U (Floor 2, Flat 1), T lives in Flat 2 on Floor 3.
- Now, A is a female on an even floor in Flat 1. Since U is on Floor 2, Flat 1, A must live on Floor 4, Flat 1.
- The remaining female O must live on Floor 2, Flat 2.

3. Position B, N, and S:

• O and Q live on the same floor: Q lives on Floor 2, Flat 2 with O.
• B lives on an even-numbered floor, two floors above N: B must live on Floor 4, Flat 2 (as E’s spouse). N lives two floors below B, which is on Floor 2, Flat 1 (as U’s spouse).
• S lives to the south-west of B but not below N:
- B is on Floor 4, Flat 2.
- South-west of B means S lives in Flat 1 on a floor lower than 4 (Floor 1, 2, or 3).
- Since Floor 4, Flat 1 is occupied by A, and Floor 2, Flat 1 is occupied by U and N, S must live on Floor 3, Flat 1.
- Floor 3 is above Floor 2 (N's floor), satisfying the condition that S does not live below N.

Conclusion:

S lives in Flat 1, floor 3.