BMAT 2012 · Question 5 · Spatial
SaveMy brother and I have commissioned a landscape gardener to redesign the back garden of the house into which our parents have recently moved. The diagram below shows the new layout:

The paths are 1m wide, apart from those which run between the veg areas and the shrub areas, which are 0.5m in width. How many 0.5m square paving slabs will be needed to make the patio and all the paths?