Suree I'd love too help here!
The question involves 16 benches and 9 bushes
benches (4x4) so a huge square
And imagine tinier squares inside made up of 4 benches and in the centre of those benches there will be a huge bush and if i do it for all of the 4 benches there'd be 9 bushes.
I used Imgur to show you
http://imgur.com/XqXfvlG
I found a soloution without Latex Lol.