Question

In a survey of 100 students, it was found that 45 students studied economics ,30 took up public administration and 52 sociology , 6 students took up all the subjects , 17 studied economics and public administration , 15 took economics and sociology and 8 public administration and sociology.
Find number of students who took :

1. At least one subject
2. None of these subject
3. Only sociology
4. Only public administration
5. Economics and Public administration but not Sociology​

Answer 1

QUESTION IS WRONG JUST TOTAL ALL THE TALLY OF SUBJECT