A nice little challenge for the day. Attached is the image for the question/challenge. A few notes
1) you must fill in all the boxes
2) you can not add any symbols into the box other than the provided numbers.
3) you cant use a trick of the wording to solve this, it must be solved with mathematical trickery
4) the answer is not "no" there is an actual solution by picking 3 numbers.
Solution, maybe cheating
Each box can be filled with 11₉ which is equal to 10 in decimal. 10 + 10 + 10 = 30.
Solution, maybe cheating
@khird Can you do it with consistent bases across the whoe equation?
Solution, maybe cheating
@freemo You mean that if I interpret the boxed numbers as a certain base, I have to do the same for the 30 so as not to mix bases?
Interpreting everything in base nine:
11 + 11 + 7 = 30
The decimal interpretation would be:
10 + 10 + 7 = 27
Solution, maybe cheating
@khird There ya go :) other bases also work but thats one answer :)
Solution, maybe cheating
@khird It the mixing of bases that is more the issue.