Question

There are 143 guests coming to a wedding there are 15 tables in the reception hall if the tables have a approximate the same number of guests, what is the minimum number of guests at each table?

Answer 1

Notice that 143 is close to 15*10=150

There are no 150 guests, so the tables cannot all have 10 people.

We try 9. If there are 9 people at each of the 15 tables there are

15*9=(10+5)*9=10*9+5*9=90+45=135 people

there are still 143-135=8 people left, which can be sited in 8 of the tables.

So we have 8 tables of 10 people and 7 tables of 9 people.


Answer: 9