Cereal A is 10% sugar by weight, whereas healthier but less delicious Cereal B is 3% sugar by weight. To make a delicious and healthy mixture that is 4% sugar, what should be the ratio of Cereal A to Cereal B, by weight?  Options.
A) 2:9  B) 2:7  C) 1:6  D) 1:4  E) 1:3
Ratio of A / Ratio of B = (Average Wt of Mixture - Wt of B)/(Wt of A - Average Wt of Mixture)   =&gt; Ratio of A / Ratio of B = (4 - 3)/(10 - 4) = 1/6   So they should be mixed in the ratio 1:6   Answer - 1:6
<result>C</result>
Cereal A is 10% sugar by weight, whereas healthier but less delicious Cereal B is 3% sugar by weight. To make a delicious and healthy mixture that is 4% sugar, what should be the ratio of Cereal A to Cereal B, by weight?