This road sign is three miles east of McNary on AZ Hwy-260 in Arizona.

The road sign says...

+------------------------------+ | 3 McNary -> | | 6 Hon-Dah -> | | <- Sush-Be-Tou Lake 5 | | <- Bog Tank 8 | | <- Horseshoe Cienega Lake 8 | | <- A-1 Lake 12 | | <- Hawley Lake 15 | | <- Sunrise Lake 17 | +------------------------------+the numbers are: 3 6 5 8 8 12 15 17 1 the math is: (6 - 5) * (3 - 1) + (17 - 15) + (12 - 8) = 8 1 * 2 + 2 + 4 = 8 2 + 2 + 4 = 8 [exercise] Find more equations. [solve for 'n'] (6 - n) * (3 - 1) + (17 - 15) + (12 - 8) = 8Note: This road sign is 12 miles from A-1 Lake. A-1 Lake was "named after an Apache Chieftan. His name wasn't actually A-1, but the U.S. Army officials couldn't easily pronounce his Apache name, so he was referred to as A-1." [source: Go-Arizona.com]

## Update::2008.10.31

The following math was discovered on 31 October 2008 after this BARS was selected as one of the BARS of the Week for Week #11 of the fall 2008 semester.

the numbers are: 3 6 5 8 8 12 15 17 1 the math is: sqrt(8 + 8 + 15 - 6) * 5 - 12 + 3 + 1 = 17 rsPhiEval: (3 - 12 / 6 - 8 / 8 + 1 + sqrt(5)) / (17 - 15) = Phi * Phi is the golden ratio and it approximates 1.61803399 how the math was found... We remembered that (1 + sqrt(5)) / 2 equals Phi. 17 - 15 was placed in the divisor and sqrt(5) in the dividend. The remaining numbers were used to find an expression that evaluated to 1. rsPiEval: (5 + 17) * (12 / (8 - 6) - (15 / 3)) / (8 - 1) = Pi * 22/7 approximates Pi (3.14) rounded to nearest hundredth how the math was found... We remembered that 22/7 approximates Pi. 5 + 17 was placed in the numerator and 8 - 1 in the denominator. The remaining numbers were used to find an expression that evaluated to 1. rs42Eval: (3 + 6 + 5 + 8 + 8 + 12) * (17 - 15 - 1) = 42 * 42 is the "Answer to Life, the Universe, and Everything" rsAgeEval: 17 + 15 + 12 + 6 + (5 - 8 / 8 - 3 - 1) = 50 * RoadHacker was 50 years young when he found this sign. rsAgeEval: 17 + 15 + 12 + 6 + (5 - 8 / 8 - 3 * 1) = 51 * MathBabbler was 51 years young when he found this equation. rsHwyEval: (17 * 15 + 5) * (12 / 6 + 8 / 8 - 3 + 1) = 260 * This sign was found on AZ Hwy-260. how the math was found... We multiplied the two largest numbers together to get 255 and added the 5 to get 260. The remaining numbers to were used to find an expression that evaluated to 1. [exericse] Find more equations.## Update::2009.04.23

The following math was discovered on 23 April 2009 after this BARS was selected as one of the BARS of the Week for Week #14 of the spring 2009 semester.

the numbers are: 3 6 5 8 8 12 15 17 1 the math is: sqrt(sqrt(3 + 6) + sqrt(5 * 8 + 8 + 1) + 15) + 12 = 17 more math: (17! / 15!) / (12 + 3 + 1) - 8 + 5 - 6 = 8 [exericse] Find more equations.

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

**Created:** 16 March 2008

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