Question 71
A university student has passed a certain number of exams, with an average grade of 23. After passing one more exam, his average drops to 22.25. Knowing that the grade of each exam is an integer between 18 and 30 inclusive, what grade did the student get in the last exam?
(A) 18
(B) 19
(C) 20
(D) 21
(E) 22.
(A) 18
(B) 19
(C) 20
(D) 21
(E) 22.