Hello! Let's pretend that there are 12 cupcakes in a package.
One person walks over to the cupcake package, opens it, and takes one out.
There are 11 left.
Two people come over to the cupcake and take one each.
There are 9 left.
Four people decide to each have a cupcake. They take one each.
There are 5 left.
In total, seven people took a cupcake each and there are now five left. I hope this helps!
The answer to this question would be : 2pi/3
Overestimate because then the gardener could possibly save the left overs in case they get a chance to use it or they could give it to someone who may need it.