All the students of class are told to sit in circle shape

All the students of class are told to sit in circle shape. Here the boy at the 5 th position is exactly opposite to 20 th boy. Total number of boys in the class?

This problem repeats another one in the library (at most with different numbers), so it's left out of browsing.

AQuA-RAT — Algebra Question Answering with Rationales (Ling et al., DeepMind, 2017) · train #31795