Problem

Source: Iranian TST 2017, first exam, day1, problem 2

Tags: combinatorics, Iran, Iranian TST



In the country of Sugarland, there are $13$ students in the IMO team selection camp. $6$ team selection tests were taken and the results have came out. Assume that no students have the same score on the same test.To select the IMO team, the national committee of math Olympiad have decided to choose a permutation of these $6$ tests and starting from the first test, the person with the highest score between the remaining students will become a member of the team.The committee is having a session to choose the permutation. Is it possible that all $13$ students have a chance of being a team member? Proposed by Morteza Saghafian