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? Choices:	A) 34%	B) 24%	C) 22%	D) 16%	E) 8.5%
Instead of using complex calculations and remembering formulae, why dont u directly get to weighted average.   3 parts of 15% + 1 part of x (unknown) % = 4 parts of 16%   =&gt; x% = 64%-45% = 16%   ans 16% it is.
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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?