In one small school with 97 students, a questionnaire about favorite flavors of ice cream was done,
and here are the results: 25 students like chocolate and vanilla flavor students like vanilla and
strawberry flavor 17 students like chocolate and strawberry flavor 9 students like all three flavors 5
students do not like ice cream.
How many students like only vanilla flavor if the number is equal to the number of students who
like only strawberry flavor and that number is two times less than the number of students who like
only chocolate flavor?