The answer is D because if you add one of the numbers in collumn x to 2, you would get the other number across from it . For example, in collumn x, you have 5.. then you add it to 2 and get 7. This formula works perfect for this table.
The problem has no real solution, because the area of inside of the frame is bigger than the total area of the frame.
Any way here is the mathematical explanation/solve to this statement.
As show in the graphic, there is a representation of the situation stated in the problem. So in order to calculate the area we have the next equation as a function of x.
Solving the equation to find the roots (values of x):
So mathematically there is no real answer, since x is a width must be positive number. And practically the outer area must be bigger than the inner area, and the inner area is given by 6 times 11, or 66 .