Physics V/S Chemistry

A class has 172 students. The following data shows the number of students opting one or more subjects: Mathematics 125, Physics 95, Chemistry 65 Mathematics and Physics 55 Mathematics and Chemistry 53 Physics and Chemistry 48 Mathematics, Physics and Chemistry 43 The number of students who opted only Physics is

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The diagram below represents the student s who study physics Chemistry but not mathematic Study the diagram and ideµJify the region which represents studenfs who study both Physics and Chemistry but not Mathematics .

Marks Obtained by Five Students in Physis and Chemistry What is the respective ratio between the total marks obtained by P in Physics and Chemistry together to the total marks by T in Physics and Chemistry together ?