Question: Give the solution/diagram and answer for this In elective classes, there are 50 students in business class and 77 students in geographic class. a. Find

Give the solution/diagram and answer for this

In elective classes, there are 50 students in business class and 77 students in geographic class.

a. Find the number of students who are either in business class or in geographic class.

b. When two classes meet at different hours and 15 students are enrolled in both subjects.

c. When two classes meet at the same hour

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