Math Homework Help for 8th Grader

[squirell nutkin]

I think I got 8.

Each caller is a letter and each number is a bit of gossip.

A B C D E F
1 2 3 4 5 6

A calls F (A has 1,6 F has 1,6)
B calls E (B has 2,5 E has 2,5)
C calls D (C has 3,4 D has 3,4)
A calls E (A has 1,2,5,6 E has 1,2,5,6)
A calls D (A has 1,2,3,4,5,6 D has 1,2,3,4,5,6)
A calls B (A has 1,2,3,4,5,6 B has 1,2,3,4,5,6)
C calls E (C has 1,2,3,4,5,6 E has 1,2,3,4,5,6)
E calls F (E has 1,2,3,4,5,6 F has 1,2,3,4,5,6)