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A restaurant's seating is completely full. There
are some four-person tables and 8 tables withcouples. If there are 56 people here, how many
four-person tables are there?
If there are 8 tables with couples, that would cover 16 out of 56 people, which means that 40 people total are sitting at four-person tables. Since we now know that 40 people are sitting at four-person tables, and we can obviously tell that four people sit at a four-person table, we can divid 40 by 4 to find that there are 10 four-person tables.
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