选择题
2003 AMC 8 Problem 9: Cookie Price
Problems 8, 9 and 10 use the same cookie-shape data. Four friends, Art, Roger, Paul and Trisha, bake cookies of the same thickness. Art's cookies are trapezoids, Roger's are rectangles, Paul's are parallelograms, and Trisha's are triangles, as shown. Each friend uses the same amount of dough, and Art makes exactly 12 cookies. Art's cookies sell for 60 cents each. To earn the same amount from a single batch, how much should one of Roger's cookies cost in cents?
A.
18
B.
25
C.
40
D.
75
E.
90