AMC 10 Step by Step
2010 AMC 10AProblem 1P1-10~1 minPrint

Mary’s top book shelf holds five books with the following widths, in centimeters: 66 , 12\dfrac{1}{2} , 11 , 2.52.5 , and 1010 . What is the average book width, in centimeters?

Log in to save your progress.

Similar problems

Problem © Mathematical Association of America (MAA), American Mathematics Competitions. Reproduced for non-commercial educational use. Solution and commentary are original to this site.