How many liters of water must be evaporated from 50 liters of a 3-percent sugar solution to get a 4-percent solution?	Select the correct option:
A) 35
B) 33 1/3
C) 21
D) 16 2/3
E) 15
How many liters of water must be evaporated from 50 liters of a 3-percent sugar solution to get a 4-percent solution?   3% of a 50 liter solution is 1.5L. So you are trying to determine how many liters must a solution be for the 1.5L to represent 4% of the solution. Set up an inequality and solve for x:   1.5/x = 1/4   x = 6   Since you need a 15L solution, you must evaporate 21 of the original 50L solution to get a 4% solution.   Answer is 21.
<result>C</result>
How many liters of water must be evaporated from 50 liters of a 3-percent sugar solution to get a 4-percent solution?