To find out how many students have not taken any of three courses

manpreet Best Answer 2 years ago

In a class of 200200 students, 125125 student have taken programming language course ,8585 students have taken Data Structure ,6565 students have taken Computer Organisation course, 5050 students have taken both programming language and Data Structure syllabus, 3535 students have taken both programming languages and Computer Organisation ,3030 students have taken data structure and Computer Organisation. 1515 students have taken all the three courses. how many students have not taken any of the courses?

My calculation- 5050 students have programming lang. And data struc. 3030 students have data struc. And computer organization 3535 have computer organization and programming language If we subtract 5050students +35+35 students from 120120 who has programming language=40=40 students left And 85−(50+30)=585−(50+30)=5 left 65−(30+35)=065−(30+35)=0 left

Number of students who have all courses=15=15 Now how to find number of students have not taken any of 33 courses?