Concept:
For two parallel rows facing North where one row is behind the other:
1. Row 1 (Yellow line) is in front.
2. Row 2 (Blue line) is behind Yellow line.
3. "Opposite" means the car in the same column in the other row.
Step 1: Analyze H2 and H5.
H5 is third to the right of H2. In a 4-car row, H2 must be at the extreme left and H5 at the extreme right.
Let's place them in the Yellow line for now:
Yellow: [H2] [_ ] [_ ] [H5]
Step 2: Analyze H3 and H4.
H3 is second to the left of H4. H4 is not at an extreme end. This means H4 must be in the 3rd position from the left, and H3 in the 1st position.
If H2 is at position 1 in Yellow, H3 must be in the Blue line:
Blue: [H3] [_ ] [H4] [_ ]
Step 3: Place H1, H7, and H8.
H7 (Blue line) is opposite H1. H4 and H1 are in different rows. Since H4 is in Blue, H1 must be in Yellow.
H8 is not at an extreme end.
Final Grid:
Yellow Line (Front): [H2] [H8] [H1] [H5]
Blue Line (Back): [H3] [H6] [H4] [H7]
Step 4: Find the odd one out.
H2, H3, H6, and H5 are all at the extreme ends of their respective rows. H8 is in the middle of the row. Thus, H8 is the odd one out.