Problem
Four friends, Art, Roger, Paul and Trisha, bake cookies, and all cookies have the same thickness. The shapes of the cookies differ, as shown: Art's cookies are trapezoids, Roger's cookies are rectangles, Paul's cookies are parallelograms, and Trisha's cookies are triangles. [See figure in original PDF]
Each friend uses the same amount of dough, and Art makes exactly cookies. Art's cookies sell for cents each. To earn the same amount from a single batch, how much should one of Roger's cookies cost in cents?
Select an answer