Cereal A is 11% sugar by weight, whereas healthier but less delicious Cereal B is 2% sugar by weight. To make a delicious and healthy mixture that is 3% sugar, what should be the ratio of Cereal A to Cereal B, by weight?  Choices:
A) 2:9  B) 3:7  C) 2:5  D) 1:8  E) 1:5
2% is 1%-points below 3% and 11% is 8%-points above 3%.   The ratio of A:B should be 1:8.   The answer is 1:8.
<result>D</result>
Cereal A is 11% sugar by weight, whereas healthier but less delicious Cereal B is 2% sugar by weight. To make a delicious and healthy mixture that is 3% sugar, what should be the ratio of Cereal A to Cereal B, by weight?