Answer=28 players
If there are 4 players at every 1 table then...
1 table would have 4 players
4=4
2 tables would have 8 players
4+4=8
3 tables would have 12 players
4+4+4=12
4 tables would have 16 players
4+4+4+4=16
5 tables would have 20 players
4+4+4+4+4=20
6 tables would have 24 players
4+4+4+4+4+4=24
7 tables would have 28 players
4+4+4+4+4+4+4=28
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You can also solver this problem by multiplying the number of tables, 7, by the number of player per table, 4.
7*4=28players
