Question

A hospital cafeteria has 20

tables.
65%


of the tables have 6

chairs at each table.
The remaining 35%
35
%
of the tables have 4
4
chairs at each table.

Complete the model.
Then complete the statements to find the total number of chairs in the hospital cafeteria.

Answer 1

Explanation:

So if their is 65% of 20 tables with 6 chairs that's 13 tables.

And if their is 35% of 20 tables with 4 chairs that's 7 tables.

Answer 2

There are 106 chairs in the hospital cafeteria.

Explanation:

Givens

• There are 20 tables.
• 65% of the tables have 6 chairs at each table.
• 35% of the tables have 4 chairs at each table.

The question is, what's the total number of chairs in the cafeteria?

We know by given that 100% represents 20 tables. We can use the rule of three, to find the number that represents a 65%, that is, if 100% is 20 tables, 65% how many tables would be?

`65\%(20)/(100\%) =13`

There are 13 tables of 6 chairs at each table.

Similarly, if 100% represents 20 tables, 35% how many tables would represent?

`35\%(20)/(100\%) =7`

There are 7 tables of 4 chairs at each table.

Then, we need to multiply to find the total number of chairs.

We know that there are 13 tables of 6 chairs, so

`13 tables * 6 chairs=78 chairs`

We also know that there are 7 tables of 4 chairs, so

`7 tables * 4chairs=28chairs`

Therefore, the total number of chairs is

`78+28=106`

There are 106 chairs in the hospital cafeteria.