BARS::Railroad Track Signs in Kansas City, Missouri

These railroad signs are at Union Station in Kansas City, Missouri.

The railroad signs say...

   +------------+ +------------+
   | Track   30 | | Track   29 |
   | Location 3 | | Location 3 |
   +------------+ +------------+
   the numbers are:  30  29  3  3

   --- these equations were found on the train ---

   the math is: 30 - 3 / 3 = 29

   rsAgeEval:  30 + 29 - 3 / 3 = 58
   * MathBabbler was 58 years young when he found these signs.

   rs42Eval:  29 + 30 / 3 + 3 = 42
   * 42 is the "Answer to Life, the Universe, and Everything"

   rsCardinalityEval:  (30 - 29 + 3)! / 3! = 4
   * There are four numbers in these signs.

   off-by-one rs37Eval:  29 + 30 / 3 - 3 = 37-1
   * Why rs37Eval? 37 Heaven @ http://thirty-seven.org
   
   --- equations found after the train ride ---

   rsStateEval:  ((30 - 29) + 3)! / 3! = 4
   * There are four numbers in these signs.

   rsStateEval:  (((30 - 29) + 3)! / 3!)! = 24
   rsStateEval:  30! / 29! - 3 - 3 = 24
   * Missouri was the 24th state admitted to the Union.

   BARSfunc rs42eval:  30 + sum_digits(29) + 3 / 3 = 42
   * 42 is the "Answer to Life, the Universe, and Everything"
   * sum_digits(n) = sum the digits of n
     domain:  n must be a prime number
   * 29 is prime; sum_digits(29) = 2+9 = 11
   * 30 + 11 + 3 / 3 = 42

   BARSfunc rs42eval:  30 + mult_digits(29) - 3 - 3 = 42
   * 42 is the "Answer to Life, the Universe, and Everything"
   * mult_digits(n) = product of the digits of n
     domain:  n must be a prime number
   * 29 is prime; mult_digits(29) = 2*9 = 18
   * 30 + 18 - 3 - 3 = 42

   BARSfunc off-by-one rsAgeEval:  reverse_digits(29) - 30 - 3! + 3 = 58+1
   * MathBabbler was 58 years young when he found these signs.
   * Note: MathBabbler was older than 58 1/2. This would not have been
           an off-by-one if found four months later.

Back in July of 2010 MathBabbler thought Kansas City Union Station was in Kansas. {BARS::Railroad Track Signs in Kansas City, Kansas}


Creator: Gerald Thurman [gthurman@gmail.com]
Created: 12 January 2016

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