One fourth of a solution that was 15% sugar 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 sugar by weight? Options
A) 34%	B) 24%	C) 22%	D) 19%	E) 8.5%
Say the second solution (which was 1/4 th of total) was x% sugar, then 3/4*0.15+1/4*x=1*0.16 --&gt; x=0.19. Alternately you can consider total solution to be 100 liters and in this case you'll have: 75*0.15+25*x=100*0.16 --&gt; x=0.19.   Answer: 19%.
<result>D</result>
One fourth of a solution that was 15% sugar 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 sugar by weight?