BARS::School Zone Speed Limit Signs in Casa Blanca, Arizona

These speed limit signs were located in Casa Blanca, Arizona.

The signs say...

   +-------------+
   |   SCHOOL    |
   +-------------+
   |   Speed     |
   |   Limit     |
   |     15      |
   +-------------+
   |   7:30am    |
   | to 3:30 pm  |
   +-------------+
   | other times |
   |-------------|
   |   Speed     |
   |   Limit     |
   |     35      |
   +-------------+

   the numbers are:  15  7  30  3  30  35

   the math is:  15 / 3 x 7 - 35 + 30 = 30

   15 / 3 = 5 ... 5 x 7 = 35
   35 - 35 = 0 ... 0 + 30 = 30

   ...or...
   
   30 + 30 - 7 - 3 - 35 = 15
Zero RSeval

These speed limit signs are also a Zero RSeval because they evaluate to zero.

   30 + 30 - 7 - 3 - 35 - 15 = 0

Creator: Gerald D. Thurman [gthurman@gmail.com]
Created: 28 April 2006

Creative Commons License
This work is licensed under a Creative Commons License.