Can someone help?

Question

A concert crew needs to set up some chairs on the floor level.The chairs are to be placed in a square pattern consisting of four square sections. If one of the square sections holds 900 chairs will there be along each length of the larger square?

Answer 1

If the 900 chairs are in a square they are arranged 30 x 30

The section "above" would have 30 rows and the section "aside" would have 30 rows

The four sections would be 60 x 60.