A doctor prescribed 18 cubic centimeters of a certain drug to a patient whose body weight was 90 pounds. If the typical dosage is 2 cubic centimeters per 15 pounds of the body weight, by what percent was the prescribed dosage greater than the typical dosage?	Choose the most appropriate option.
A) 8%
B) 9%
C) 11%
D) 12.5%
E) 16.7%
Typical dosage is Dose : weight :: 2: 15.   Now if weight is 90 (Multiplying factor is 6: (90/15)) then typical dosage would be 2 *6= 
<gadget id="calculator">2 *6</gadget>
<output>12</output>
12 cc.   Dosage= 18 cc. Dosage is greater by 2 cc.   % dosage is greater: (2 / 12)*100 = 16.67 %   16.7% is the answer.
<result>E</result>
A doctor prescribed 18 cubic centimeters of a certain drug to a patient whose body weight was 90 pounds. If the typical dosage is 2 cubic centimeters per 15 pounds of the body weight, by what percent was the prescribed dosage greater than the typical dosage?