Difference between revisions of "2005 AMC 10B Problems/Problem 20"

 
Line 1: Line 1:
 
== Problem ==
 
== Problem ==
 +
What is the average (mean) of all 5-digit numbers that can be formed by using each of the digits 1, 3, 5, 7, and 8 exactly once?
 
== Solution ==
 
== Solution ==
 
== See Also ==
 
== See Also ==
 
*[[2005 AMC 10B Problems]]
 
*[[2005 AMC 10B Problems]]

Revision as of 22:23, 17 August 2010

Problem

What is the average (mean) of all 5-digit numbers that can be formed by using each of the digits 1, 3, 5, 7, and 8 exactly once?

Solution

See Also

Invalid username
Login to AoPS