How many liters of water must be evaporated from 50 liters of a 3-percent sugar solution to get a 5-percent solution?  Choose the correct option.
A) 35
B) 22.5
C) 27
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 5-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 5% of the solution. Set up an inequality and solve for x:   1.5/x = 1/5   x = 7.5   Since you need a 15L solution, you must evaporate 22.5 of the original 50L solution to get a 5% solution.   Answer is 22.5.
<result>B</result>
How many liters of water must be evaporated from 50 liters of a 3-percent sugar solution to get a 5-percent solution?