This is Round 1, Question 2 from the 2008 iTest Tournament of Champions. Round 1 was last week, Round 2 is this week, and we have another Round each week until the nation's 64 best high school math students have produced a single National Champion.

I like this problem because of the clever solution (available in the Round 1 Solutions Guide, available for free download on the iTest homepage) and algebra problems like this were some of my more favorite ones back then.

Now, I struggle to do problems I used to be able to do in a breeze. Although, I will say that being part of the iTest allows me to keep up on math in a way I'd never, ever be able to do without it.

American Idol tonight. I really am getting to the point where I like several of the contestants so much that I plan ahead to watch the show. I haven't done that since 24, and then before that, the X-Files...