BARS::Forest Road 212 Along AZ Hwy-78 in Arizona

This road sign is along AZ Hwy-78 in the Apache National Forest in Arizona.

The road sign says...

   +----------------------------+
   | Forest Road 212            |
   | Bear Track Camp    2.8 Mi. |
   | Forest Road 215   10.2 Mi. |
   | Hwy. 191          31.1 Mi. |
   +----------------------------+
   the numbers are:  212  2.8  215  10.2  191  31.1

   ceil(2.8) = 3        [round up to nearest integer]
   floor(10.2) = 10     [round down to nearest integer]
   floor(31.1) = 31     [round down to nearest integer]

   the numbers become:  212  3  215  10  191  31

   the math is:  sqrt(31 - sqrt(212 + 3 + 10))! + 191 = 215

   observe...
      212 + 3 + 10 = 225
      sqrt(225) = 15
      31 - 15 = 16
      sqrt(16) = 4
      4! = 24
      191 + 24 = 215

Note: This road sign was discovered on Pi Day 2008.


Creator: Gerald Thurman [gthurman@gmail.com]
Created: 18 March 2008

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