Difference between revisions of "Mock AIME 4 2006-2007 Problems/Problem 5"

 
m
Line 5: Line 5:
 
{{solution}}
 
{{solution}}
  
 +
 +
----
 +
 +
*[[Mock AIME 4 2006-2007 Problems/Problem 6| Next Problem]]
 +
*[[Mock AIME 4 2006-2007 Problems/Problem 4| Previous Problem]]
 
*[[Mock AIME 4 2006-2007 Problems]]
 
*[[Mock AIME 4 2006-2007 Problems]]

Revision as of 11:47, 16 January 2007

Problem

How many 10-digit positive integers have all digits either 1 or 2, and have two consecutive 1's?

Solution

This problem needs a solution. If you have a solution for it, please help us out by adding it.