MathBabbler was watching the TV news and there must have been a story about a wreck on westbound I-10. The video clip showed a picture of a road sign that said the following...

[picture coming soon]

+--------------------+ | 7th St 1/2 | | Central Ave | | 7th Ave 1 1/2 | | 19th Ave 2 1/2 | +--------------------+the numbers are: 7 (1/2) 7 (1 1/2) 19 (2 1/2) the math is: 19 - 7 - 7 = (1/2 + 1 1/2) * (2 1/2) observe... 1/2 = 0.5 1 1/2 = 1.5 2 1/2 = 2.5 Pi math: (19 + 7 - sqrt(2.5 + 1.5) / 0.5) / 7 = 22/7 observe... 2.5 + 1.5 = 4 and sqrt(4) = 2 22/7 approximates Pi (3.14) rsHwyEval: 19 - 7 - 7 + 2.5 * (0.5 + 1.5) = 10 * the road sign is on I-10 rsAgeEval: 19 / 0.5 + 7 + 7 - sqrt(1.5 + 2.5) = 50 * MathBabbler was 50 years young when he saw the road sign on TV. rs42Eval: 7 / 0.5 + 7 + 19 + sqrt(1.5 + 2.5) = 42 * the "Answer to Life, the Universe, and Everything" another rs42Eval: 19 / 0.5 + 1.5 + 2.5 + 7 - 7 = 42 [solve for 'n'] 19 - n - n = (1/2 + 1 1/2) * (2 1/2) [solve for 'n'] 19 - 7 - 7 + n * (0.5 + 1.5) = 10 [solve for 'n'] 19 / 0.5 + n + 2.5 + 7 - 7 = 42 [solve for 'n'] n / 0.5 + 7 + 7 - sqrt(1.5 + 2.5) = 50A similar, yet different, road sign was found on northbound I-17 in Phoenix.

BARS::Pi and Phi 7th St. Exit on I-17 North in Phoenix, Arizona

**Creator:** Gerald Thurman
[gthurman@gmail.com]

**Created:** 22 May 2008

This work is licensed under a Creative Commons Attribution 3.0 United States License.