One fourth of a solution that was 10% salt by weight was replaced by a second solution resulting in a solution that was 16 percent sugar by weight. The second solution was what percent salt by weight?
Options:
A) 24% B) 34% C) 22% D) 18% E) 8.5%
Say the second solution (which was 1/4 th of total) was x% salt , then 3/4*0.1+1/4*x=1*0.16 --&gt; x=0.34. Alternately you can consider total solution to be 100 liters and in this case you'll have: 75*0.1+25*x=100*0.16 --&gt; x=0.34.   Answer: 34%.
<result>B</result>
One fourth of a solution that was 10% salt by weight was replaced by a second solution resulting in a solution that was 16 percent sugar by weight. The second solution was what percent salt by weight?