One fourth of a solution that was 8% 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?  Select:
A) 40% B) 24% C) 22% D) 18% E) 8.5%
Instead of using complex calculations and remembering formulae, why dont u directly get to weighted average.   3 parts of 8% + 1 part of x (unknown) % = 4 parts of 16%   =&gt; x% = 64%-24% = 40%   ans 40% it is.64 -24= 
<gadget id="calculator">64 -24</gadget>
<output>40</output>
40%   ans 40% it is.
<result>A</result>
One fourth of a solution that was 8% 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?