Challenge yourself!Grades 7-8 (cut-paper-pieces)

The following figure shows a rectangular piece ABCD of paper. The rectangle is composed of several smaller pieces, each of which is shown in a different color. All lines shown in the figure are straight.


Now, the pieces from the above figure are rearranged as shown below to form another rectangle MNOP. In the following arrangement, you will find a new rectangular piece PXUT that was not there in the previous arrangement.


What is the area of the rectangle MNOP?