Question 70
Five squares (labelled $A$, $B$, $C$, $D$ and $E$) are drawn along a straight line, each touching the next square at a vertex, as shown in the diagram. Square $B$ has an area of $20$. Square $C$ has a side length of $4$. Square $D$ has double the area of square $B$. What is the area of square $E$?
