Rectangle A has sides a and b, and rectangle B has sides c and d. If a/c=b/d=4/5, what is the ratio of rectangle A’s area to rectangle B’s area?
Choose the correct option: A) 5/4 B) 25/16 C) 4/5 D) 16/25 E) 16/5
The area of rectangle A is ab.   c=5a/4 and d=5b/4.   The area of rectangle B is cd=25ab/16.   The ratio of rectangle A's area to rectangle B's area is ab / (25ab/16) = 16/25.   The answer is 16/25.
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Rectangle A has sides a and b, and rectangle B has sides c and d. If a/c=b/d=4/5, what is the ratio of rectangle A’s area to rectangle B’s area?