"10800 = X" riddle


In volume 8 of _In Another World With My Smartphone_ , Touya (the MC)
encounters ruins containing riddles. Whilst the novel explains the questions
and answers to most of them, one of them has me confused:

> "Please follow the rules of the current calculation. In this system, what
> does X equal?" 36 = 1, 108 = 3, 2160 = 2, 10800 = X.

Touya claims the answer was straightforward and proceeds. But, whilst it may
have been straightforward to him, I don't get it. If required, I can supply
the answer he gives, but, I didn't want to spoil it.




While there are probably many possible answers, the most common answer is

> **10800 = 5** , or **X = 5**.

Hints:

  1. > "0" is 1,"1" is 0, etc. (the puzzle usually avoids "4" because it's ambiguous)

  2. > Count the loop on each digit.

  3. > Only "0", "6", "8" and "9" have loop(s) on their digits.

Solution:

> "10800" has 5 loops; 3 from "0" and 2 from "8", thus X = 5.




While there are probably many possible answers, the most common answer is

> **10800 = 5** , or **X = 5**.

Hints:

  1. > "0" is 1,"1" is 0, etc. (the puzzle usually avoids "4" because it's ambiguous)

  2. > Count the loop on each digit.

  3. > Only "0", "6", "8" and "9" have loop(s) on their digits.

Solution:

> "10800" has 5 loops; 3 from "0" and 2 from "8", thus X = 5.

