Farkel,
I'll have you know that I'm not just *any* moron. I'm a moron of the highest degree. In fact, I'd venture so far as to say that I am probably the most moronic one on this board. You know what? I'm even more of a moron than Alfred E. Newman! This is where I would insert one of those nonsensical smiley faces if I believed in using them. Please allow the exclamation point to communicate the levity of my post.
100 - 85 = 15
100 - 80 = 20
100 - 75 = 25
100 - 70 = 30
15 + 20 + 25 + 30 = 90
100 - 90 = 10
Just my guess.
- Syrup M. Titious ( guess what the M. stands for...)