- #1
pwange
- 3
- 0
![lvyt3yv.png](http://i.imgur.com/lvyt3yv.png)
Example:
1. (A,B,C,D,E)
2. (A,B,C,D)
3. (A,B,C)
4. (A,B)
5. (A)
6. (A,B,D,E)
etc...
I just put it in a table format, as it's easier to count this way (31 columns = 31 solutions).
Not sure if there are any more ways to do this.
Questions:
1) Are there only 31 ways to do this?
2) Is there like a calculator online which solves this sort of problem?
3) Is there a name for this sort of problem?