In a class of less than 100 students, every student studies at least one subject among Maths, Physics and Chemistry. The number of students who study only Maths is half of the number of students who study all the three subjects. The number of students who study only Maths and Physics is half the number of students who study only Chémistry. The ratio of the students who study only Physics to those who study only Physics and Chemistry-is 2:3. The ratio of students whd study only Maths to those who study only Chemistry is 2 5. The total number of
students in the class is the square of the number of students who study only Maths and Chémistry.