It's possible a Venn diagram can have three (or more) sets depicted within them. A set of pupils were asked which sports they played in school, from a list of Football, Hockey, Netball and None.

Complete set B using the numbers 1, 4, 6 and 12. These numbers are in set B but not in set A. Complete the Venn diagram by writing the remaining numbers 8, 9, and 10 in the region that is outside ...