1MA0 Higher June 2012 Paper 2 Q5

*5 Mr Weaver’s garden is in the shape of a rectangle.

In the garden
    there is a patio in the shape of a rectangle
and two ponds in the shape of circles with diameter 3.8 m.

The rest of the garden is grass.

Diagram NOT accurately drawn

Mr Weaver is going to spread fertiliser over all the grass.
One box of fertiliser will cover 25 m\(^2\) of grass.

How many boxes of fertiliser does Mr Weaver need?
You must show your working. (5)