Question

In a survey it is found that 35 students like comics,20 like novels,17 like biographies.Of these 7 like comics and novels,4 like novels and biographies 6 like comics and biographies but only 2 like all 3.Then find who read only comics?Students who read only novels?No.of students surveyed in all?students who read only 2 books

Answer 1

Answer:

Take a view of answer from this picture....hope you will understand