Question 15
MediumOriginal questionSeven people, A, B, C, D, E, F and G, sit on a long bench in a row, all facing north.
1. D sits exactly in the middle of the row.
2. Only one person sits between B and D.
3. G sits immediately to the right of B.
4. A sits at one of the ends, and exactly three people sit between A and G.
5. F does not sit next to D.
6. C sits immediately to the left of A.
On the bench, how many people sit between F and C?
Show the answer and explanation
Correct answer: D
Explanation
D is fourth of seven. One person between B and D puts B second or sixth, with G immediately to B's right: B-G in seats 2-3 or 6-7.
A is at an end with three people between A and G. If G were seventh, A would have to be third, not an end. So B is second, G third and A seventh.
C is immediately left of A: sixth. F cannot be next to D, so F takes the first seat and E the fifth.
Bench, left to right: F, B, G, D, E, C, A.
F is first and C sixth: B, G, D and E are between them, 4 people.
Worth noting
3 misses one of the four; write the row out and list them rather than counting in your head.
- Concept
- Counting strictly between two seats
- Typical timeTypical
- 80 s
- Your timeYours
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Ten questions from Seating Arrangement, at your own pace.