Question

A hedge boundary needs to be planted around a rectangular lawn 18 metres long and 12 metre wide if 3 shrubs can be planted to grow a metre of hedge many shrubs will be needed in all

Answer 1

area of hedge=lxb=12x18=21h6m^2
1m^2 hedge= 3 shrubs
216m^2 hedge=216x3 shrubs
=648 shrubs answer
hope it helps