What is the greatest mean score Emily could have after taking the seventh math quiz?

jerryberry_67878: What is the greatest mean score Emily could have after taking the seventh math quiz?
Emily scored 75, 85, 35, 85, 70, and 10 on her first six math quizzes. The best score Emily can make on a math quiz is 100. What is the greatest mean score Emily could have after taking the seventh math quiz? Please help, I am not sure how to solve this problem. Can someone please provide the steps to solve this question?

Thanks so much 🙂

Answers and Views:

Answer by Puzzling
Just add up the 7 scores (including the maximum score of 100) and divide by 7. This gives you the mean (also known as the average).

(75 + 85 + 35 + 85 + 70 + 10 + 100) / 7
= 65.7%

It doesn’t look too good for Emily. The best she can get is an average of 65.7%.