Question

A square garden is 12 feet long on each side. Janet needs to put a post at each corner. She also needs to put one every 3 feet on each side. How many posts does Janet need.

Answer 1

12ft = 4 posts
4 x 4
=16 - 4
= 12
There is 4 post on each side but there is an overlap so you must take off 4 so there is no overlap
Therefore there are 12 posts