A solution of X pounds of water and sugar is boiled until 20% of the water content evaporates. Originally y% of sugar was present in the solution. After evaporation, what percentage of the solution is sugar?	Choose the correct choice from the following answers:
A) 100y/(1-y)	B) 80y/(1-y)	C) 75y/(1-y)	D) 100y/(80-0.2y)	E) 100y/(80+0.2y)
Assume values when the options have a variable.   Say, x is 100 pounds. Say y% is 50% i.e. the solution had 50 pounds of sugar and 50 pounds of water.   20% water evaporates so  20/100 * 50= 
<gadget id="calculator"> 20/100 * 50</gadget>
<output>10</output>
10 pounds of water evaporates leaving 40 pounds of water.   %age of sugar solution= 50/(50+40) * 100 = 55%   Put y = 50 in the options. Options (A), (B) and (C) make no sense since they will have a negative denominator. Option (E) gives 55% when you put y = 50.   Answer (100y/(80+0.2y))
<result>E</result>
A solution of X pounds of water and sugar is boiled until 20% of the water content evaporates. Originally y% of sugar was present in the solution. After evaporation, what percentage of the solution is sugar?