Question

There are 138 people seated at the tables in a banquet hall, each table can seat 12 people.

all the tables are full except one. how many full tables are there?

If you guys can when you answer please write out your eqation!

Answer 1

Do 138 / 12 = 11.5
There are 11 tables, with a table with 6 people.

Answer 2

First, we need to find the total table needed to seat 138 people if one table only have the maximum capacity of 12.

The total table needed would be:
138/12 = 11.5 >>>> rounded up to 12 tables because we can't have only half of the table.

If from the 12 tables only 1 that is not full, the amount of full tables are:

12-1 = 11 tables.