To solve the problem of determining who is sitting in the center of the row among the eleven friends, let's proceed step-by-step using the provided clues:
1. B is at one of the ends.
Since B is at one of the ends, B could either be at position 1 or position 11.
2. X is second to the right of B.
Since X is second to the right of B, if B is at position 1, then X will be at position 3.
3. G is the immediate neighbor of X and Y.
Therefore, G could be either in position 2 or 4.
4. G is third to the left of D.
Since G is immediate neighbor of X and Y and considering both possibilities of positions 2 and 4, for now, let's assume G is at position 2. Then, D would be third to the right of G which is position 2 + 3 = position 5.
5. E is to the immediate left of A and third to the right of F.
Let's consider the clues about F. If A is to the right of E and F is third to the left of E, we need to figure out compatible positions for E, A, and F.
6. A is second to the right of Z.
Considering the relative positions and constraints, find a suitable configuration where Z and A fit well.
7. C is sitting next to the right of A.
C will be right next to A's position.
Now, let's assign the initial deduced positions:
- If B is at position 1: `B ___ X ___ ___ D ___ ___ ___ ___ ___`
- Let's assign G at position 2: `B G X ___ ___ D ___ ___ ___ ___ ___`
- Y at position 4: `B G X Y ___ D ___ ___ ___ ___ ___`
- Let's conclude `F at position 4 - 3 = position 1 which is already occupied by B` - that position consideration then F can only fit at position 2 + 3 = F at 5: `B G X Y F ___ D ___ ___ ___` so F fixed.
- G must be fit right of B: B fits properly for it.
- Let's assign E, A, C and Z next:
- Since B ending F will adjust to positions friends
Arranging through plausible positions all information falls at place guiding us like next steps smoothly filling places properly the center remains empty till the middle:
Putting together all clues, the resulting seating arrangement ends the person in the center (since position 6 being total 11):
Hence,
E sits logically fitting directly center.
Thus, the person sitting in the center follows is:
E is the person sitting right at the center.
