To determine who is sitting in the middle of the bench, we analyze the arrangement based on the given conditions:
Let's consider the possible arrangement:
Thus, the person sitting in the middle of the bench is:
C
Four teams – Red (R), Blue (B), Green (G), and Yellow (Y) – are competing in the final four rounds of the Inter-School Science Olympiad, labeled Round A, Round B, Round C, and Round D. Each round consists of one match between two teams, and every team plays exactly two matches. No team plays the same opponent more than once.
The final schedule must adhere to the following rules:
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