In College X the number of students enrolled

In College X the number of students enrolled in both a chemistry course and a biology course is how much less than the number of students enrolled in neither? (1) In College X there are 60 students enrolled in a chemistry course. (2) In College X there are 85 students enrolled in a biology course. Statement (1) ALONE is sufficient, but statement (2) alone is not sufficient., Statement (2) ALONE is sufficient, but statement (1) alone is not sufficient., BOTH statements TOGETHER are sufficient, but NEITHER statement ALONE is sufficient., EACH statement ALONE is sufficient., Statements (1) and (2) TOGETHER are not sufficient.