Question 3
Five rectangles, $A,$ $B,$ $C,$ $D,$ and $E,$ are arranged in a square as shown below. These rectangles have dimensions $1\times6,$ $2\times4,$ $5\times6,$ $2\times7,$ and $2\times3,$ respectively. (The figure is not drawn to scale.) Which of the five rectangles is the shaded one in the middle?
