Ten > Sets

Asked by Atith Adhikari · 2 years ago

In a class of 25 students, 12 have chosen Mathematics, 8 have chosen Mathematics but not Biology. If each of them has chosen at least one, then

1. What is the relation between the total number of students and the students who have not chosen Mathematics or Biology?
2. Find the number of students who have chosen both Mathematics and Biology.
3. Find the number of students who have chosen Mathematics but not Biology.
4. Find the cardinality of the set representing the symmetric difference of the set of the students who like Mathematics and Biology.