Question

draw an array to show how to arrange 20 chairs into 5 equal rows. Explain what each part of the array represents.

Answer 1

Since there are 20 chairs and should be arrange into 5 equal rows. So the number of chairs in each row is equal to 20 / 5 which equal to 4. so let x represent a chair in the array. so the drawing should be like:
x x x x
x x x x
x x x x
x x x x
x x x x