The amount of water (in ml) that should be added to reduce 18 ml. Lotion, containing 50% alcohol, to a lotion containing 30% alcohol, is?	Choose the correct choice from the following answers:
A) 8 ml  B) 5 ml  C) 4 ml  D) 6 ml  E) 12 ml
9 9   30% 70%   30% ----- 9   70% ------? =&gt; 21 - 9= 
<gadget id="calculator">21 - 9</gadget>
<output>12</output>
12 ml   Answer:12 ml
<result>E</result>
The amount of water (in ml) that should be added to reduce 18 ml. Lotion, containing 50% alcohol, to a lotion containing 30% alcohol, is?