5 questions, each options each , 2000 candidates
Source: Mathcenter Contest / Oly - Thai Forum 2008 R3 p10 https://artofproblemsolving.com/community/c3196914_mathcenter_contest
November 9, 2022
combinatoricsthis problem is a nightmare
Problem Statement
One test is a multiple choice test with questions, each with options, candidates, each choosing only one answer for each item.Find the smallest possible integer that gives a student's answer sheet the following properties: In the student's answer sheet , there are four sheets in it. Any two of the four tiles have exactly the same three answers.(tatari/nightmare)