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 the correct option:
A) 67%
B) 62%
C) 24%
D) 64%
E) 66%
r = 3 πr2 = 9   r = 5 πr2 = 25   25 π – 16 π   100 ---- ? =&gt; 64%   Answer: 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?