1. My classmates are very funny and kind.

2. My classmates are very funny and they are kind.
3. My classmates are very funny and they are very kind.
[Does #1 mean #2 or #3? Generally what does #1 mean?]

Strictly speaking, 1 and 3 mean the same thing, but 2 is almost identical, too. The only word omitted in 2 is the second instance of "very."

I'd say all three mean the same thing.