一道GMAT的题目.我很无语

题目

一道GMAT的题目.我很无语
Q11:
A rectangular picture is surrounded by a boarder, as shown in the figure above. Without the boarder the length of the picture is twice its width. If the area of the boarder is 196 square inches, what is the length, in inches, of the picture, excluding the boarder?
A.10
B.15
C.30
D.40
E.60

答案