In this question:

*A student received the following scores on five quizzes (each out of 20): 10.2, 14.2, 19.8, 18.6, and 15.6.*

*The student has one more quiz to take (also out of 20) and wants to either have an overall mean of 16.5 or higher or a mean greater than 16 combined with a median of 16.5 or higher.*

*What is the approximate minimum grade the student needs on the final quiz to achieve either aim?*

*A. 15.6*

*B. 16.6*

*C. 17.6*

*D. 20*

*E. Neither aim can be achieved*

Greg says that the answer is C (ans: 17.6) because it satisfies at least one of the conditions (here it satisfies the second condition, i.e, â€śa mean greater than 16 combined with a median of 16.5 or higherâ€ť). But if the minimum value is 17.6, the mean equals 16 but is not greater than 16. What am I missing here? Thanks!