Total number of students who play exactly 1 more game along with Cricket are how much more or less than total number of students who play exactly 2 more game along with Football?
Let students who play only Football be 20x. So, students who play only Badminton = 10x And, students who play only Cricket = 25x Now, students who play all 3 games together = 5x Now, students who play Cricket and Football but not Badminton = 7.5x And, students who play Football and Badminton together = 15x Now, students who play Football and Badminton but not Cricket = 10x Now, students who play both Cricket and Badminton together = 10x So, students who play Cricket and Badminton but not Football = 5x According to question, => 25x + 7.5x + 20x + 5x + 5x + 10x + 10x = 990 => x = 12 
Total number of students who play exactly 1 more game along with Cricket = 90 + 60 = 150 Total number of students who play exactly 2 more game along with Football = 60 Required difference = 150 − 60 = 90
