I could fudge something together, but wondered if there was a proper way to accomplish this.
Say I have three sets of boxes, and each day I pick from a different box, and then rotate
- Box 1 Day1 Day4 Day7
- Box 2 Day2 Day5 Day8
- Box 3 Day3 Day6 Day9
What would be the best way to determine what box to use on what day?
In simple terms, I know i am on day 5, how do I know to use box 2
If there is a good solution, what "area" of maths is it (sorry, been a while!)