In a university out of 100 students, 15 like reading newspapers only, 12 like learning computers only, and 8 like watching movies on the tv only. 40 like reading newspaper and watching movies, 10 like reading newspaper and learning computer, 20 like learning computer and watching movies. 65 like watching movies. find the number of students who
1. like reading newspapers
2. like learning computers
3. did not like to do any of the things mentioned above.
We think that some data is missing.