50 - 3 = 47 - the number of students who are enrolled in ap calculus or in ap english
33 + 27 = 60
60 - 47 = 13 - the number of students who are enrolled in ap calculus and in ap english.
Therefore the number of students who are enrolled in only ap calculus is equal
33 - 13 = 20
33 + 27 = 60
60 - 47 = 13 - the number of students who are enrolled in ap calculus and in ap english.
Therefore the number of students who are enrolled in only ap calculus is equal
33 - 13 = 20