Chinese doctors' lunch bet on primary school math goes viral

A video circulating on Chinese social media shows three medical doctors from West An Transport University, Central South University and the 301 Hospital of the Chinese People's Liberation Army betting that they would not eat lunch until they solved a primary‑school mathematics problem. The problem involves two hikers, A and B, climbing and descending a mountain with different speeds. After about five to six minutes of discussion, the doctor from the 301 Hospital offered an answer that turned out to be incorrect. The team then reviewed the steps together, and the doctor from Central South University eventually derived the correct solution, ending the wager.

The clip was posted by a user from Shaanxi province and quickly attracted attention across Chinese platforms, prompting commentary in Indonesia and Vietnam about the unusual academic challenge and the doctors' determination to solve the puzzle before their meal.