This road sign is in Kelso, California.

+-------------+ | I-40 18 | | Amboy 36 | | I-15 35 | | Baker -> | +-------------+the numbers are: 40 18 36 15 35 the math is: (36 / 18) * (35 - 15) = 40 [solve for 'n'] (36 / 18) * (n - 15) = 40The road sign was submitted to RoadSignMath.com on 14 December 2005.

This road sign was found in Kelso, CA, in the Mojave National Preserve. It is along Kelso Cima Road near the northeast corner of the intersection with Kelbaker Road. The picture was taken on Sunday, 9 October 2005, while driving home from attending the DARPA Grand Challenge. RoadHacker was driving Kelbaker Road south through the Mojave National Preserve Baker to I-40, via Kelso and the Kelso Dunes.

## Update::2009.04.17

This BARS was selected to be one of the BARS of the Week for week #13 of the spring 2009 semester.

the numbers are: 40 18 36 15 35 rs42Eval: 40 + sqrt(18 + 36 - 15 - 35) = 42 * 42 is the "Answer to Life, the Universe, and Everything" rs42Eval: 40 + 18 - 15 - 36 + 35 = 42 rs42Eval: 40 + log((35 + 15) * (36 / 18)) = 42## Update::2010.03.18

RoadHacker encountered this road sign again on day two (March 15th) of his Pi Day 2010 road trip.

the numbers are: 40 18 36 15 35 more math: 35 - 15 - 18 = sqrt(40 - 36) rsPiEval: (40 + 15 + 35) * (36 / 18) degrees = Pi radians rsAgeEval: 40 + sqrt(36) * (35 -15 - 18) = 52 * RoadHacker was 52 years young on Pi Day 2010.

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

**Created:** 14 December 2005

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