Art of Problem Solving

Mock AIME 2 2006-2007 Problems/Problem 11: Difference between revisions

4everwise (talk | contribs)
No edit summary
 
4everwise (talk | contribs)
No edit summary
Line 1: Line 1:
== Problem ==
== Problem ==
The positive integers <math>\displaystyle x_1, x_2, ... , x_7</math> satisfy <math>\displaystyle x_6 = 144</math> and <math>\displaystyle x_{n+3} = x_{n+2}(x_{n+1}+x_n)</math> for <math>\displaystyle n = 1, 2, 3, 4</math>. Find <math>\displaystyle \lfloor x_7 /10 \rfloor </math>.

Revision as of 17:13, 24 July 2006

Problem