SOLUTION: Please help me solve this problem. A survey was made of the courses taken by 80 students in a class. The figures obtained are shown below, Mathematics only,15 Physics and Mathem

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Question 910965: Please help me solve this problem.
A survey was made of the courses taken by 80 students in a class. The figures obtained are shown below,
Mathematics only,15
Physics and Mathematics,40
Mathematics but not Computer Studies,35
Mathematics,70
Computer Studies and Physics,24
Physics,50
Determine the number of students who took
1)Computer studies

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
39 students took Computer Science but no one took only computer science