Question

Over four evenings, Ms.Cross grades 6 papers, 8 papers, 9 papers, and 7 papers. She wants to grade an average of 9 papers a night. What would be a reasonable estimate of how many papers Ms.Cross must grade on the fifth day to reach that goal?

A)11
B)15
C)18
D)19

Answer 1

The answer would be 15. The average of 6, 7, 8, 9, and 15 is 9. Hope this helps.