Question 65
HardOriginal questionTen people sit in two rows of five, facing each other. P, Q, R, S and T sit in Row 1, facing north. A, B, C, D and E sit in Row 2, facing south. Each person faces exactly one person in the other row.
1. T sits in the middle of Row 1, and A faces T.
2. Q sits at the right end of Row 1, and R sits immediately to the left of Q.
3. S does not sit next to T.
4. D faces R.
5. B sits second to the left of A.
6. E does not sit at an end.
Among the ten people, who faces the person sitting second to the left of R?
Show the answer and explanation
Correct answer: B
Explanation
Row facing north: left is west, right is east. Row facing south: left is east, right is west. Each person faces the one in the same position of the other row.
Row 1 faces north, so its right end is east: Q is at the east end and R beside him (fourth from the west). T is in the middle. S is not next to T, so S is at the west end and P second.
A faces T (middle of Row 2) and D faces R. B is second to A's left; left is east for Row 2, so B is at the east end. E is not at an end, so E is second from the west and C is at the west end.
West to east: Row 1 S, P, T, R, Q; Row 2 C, E, A, D, B.
R faces north: left is west. Going west from R: T (1st), P (2nd). P faces E.
Worth noting
A faces T, who is only first to R's left. D faces R himself.
- Concept
- Chaining a left-count with a facing pair
- Typical timeTypical
- 120 s
- Your timeYours
- —
Ten questions from Seating Arrangement, at your own pace.