Who lives just above the floor of J?
- AOption (a)
G
- BOption (b)
R
- COption (c)
O
- DOption (d)
B
- EOption (e)
S
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Correct answer
S
Why this answer is correct
Here, persons are B, G, J, K, O, R, S and U.
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There is a gap of only one floor between G and S who lives on the even number floor (Since B lives above the floor of S).
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No one lives to the west of G.
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The number of floor above the floor of G is same as below the floor of J.
| Floors | Case – 1 | Case – 2 | Case – 3 | Case – 4 | ||||
|---|---|---|---|---|---|---|---|---|
| Flat X | Flat Y | Flat X | Flat Y | Flat X | Flat Y | Flat X | Flat Y | |
| 4 | G | G | G | G | ||||
| 3 | ||||||||
| 2 | S | S | S | S | ||||
| 1 | J | J | J | J |
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There is only one floor between U and B who lives above the floor of S.
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J lives just below K but in different flats. Therefore, case 2 and case 3 are eliminated.
| Floors | Case – 1 | Case – 4 | ||
|---|---|---|---|---|
| Flat X | Flat Y | Flat X | Flat Y | |
| 4 | G | G | ||
| 3 | ||||
| 2 | S | K | K | S |
| 1 | J | U | U | J |
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R lives to the northeast of O.
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B and U live on different type of flats. Therefore, case 1 is eliminated. Hence, the final arrangement is as follows
| Floors | Flat X | Flat Y |
|---|---|---|
| 4 | G | R |
| 3 | O | B |
| 2 | K | S |
| 1 | U | J |
Hence, S lives just above the floor of J.
