A tank contains 10,000 gallons of a solution that is 5 percent sodium chloride by volume. If 1,600 gallons of water evaporate from the tank, the remaining solution will be approximately what percent sodium chloride?
Choose the correct option.
A) 5.55%  B) 5.65%  C) 5.75%  D) 5.85%  E) 5.95%
The amount of sodium chloride is 0.05*10,000 = 500 gallons   500/8400 = 5/84 which is about 5.95%   The answer is 5.95%.
<result>E</result>
A tank contains 10,000 gallons of a solution that is 5 percent sodium chloride by volume. If 1,600 gallons of water evaporate from the tank, the remaining solution will be approximately what percent sodium chloride?