One fourth of a solution that was 12% 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?  Choose the correct choice from the following choices:  A) 34%  B) 28%  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 12% + 1 part of x (unknown) % = 4 parts of 16%   =&gt; x% = 64%-36% = 28%   ans 28% it is.64 -36= 
<gadget id="calculator">64 -36</gadget>
<output>28</output>
28%   ans 28% it is.
<result>B</result>
One fourth of a solution that was 12% 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?