Xavier Aptitude Test 2013 Paper

(b) Student not playing football = 30%
Student not playing cricket = 25%
Student not playing basket ball = 20%
Student not playing carrom = 15%
Hence, maximum number of students not playing at least one of the games = 30 + 25 + 20 + 15 = 90%.
Minimum percentage of students playing all four games = 100 – 90 = 10%.