Rectangle A has sides a and b, and rectangle B has sides c and d. If a/c=b/d=2/5, what is the ratio of rectangle A’s area to rectangle B’s area?	Choose the correct option:
A) 2/5	B) 2/25	C) 5/2	D) 5/4	E) 4/25
The area of rectangle A is ab.   c=5a/2 and d=5b/2.   The area of rectangle B is cd=25ab/4.   The ratio of rectangle A's area to rectangle B's area is ab / (25ab/4) = 4/25.   The answer is 4/25.
<result>E</result>
Rectangle A has sides a and b, and rectangle B has sides c and d. If a/c=b/d=2/5, what is the ratio of rectangle A’s area to rectangle B’s area?