The radius of the two circular fields is in the ratio 3: 5 the area of the first field is what percent less than the area of the second?
Select:
A) 50%	B) 60%	C) 40%	D) 64%	E) 55%
Explanation:   r = 3 πr2 = 9   r = 5 πr2 = 25   25 π – 16 π   100 ---- ? =&gt; 64%   ANSWER IS 64%
<result>D</result>
The radius of the two circular fields is in the ratio 3: 5 the area of the first field is what percent less than the area of the second?