i need a word problem done

Question

The teacher arranged the chairs for the fall festivaal. There were 402 chairs. The first row had 18 chairs. All of the other rows have 24 chairs in each row. How many rows were set up?

Answer 1

n = number of other rows (not counting the first row)

First row: 18 chairs

Other rows: 24n chairs total

18 + 24n = 402 chairs

Solve for n.

n = (402 - 18)/24 = 16

Starting with the second row, there are 16 rows. Add 1 more row to account for the first row.

You have 17 rows total.