Cereal A is 10% sugar by weight, whereas healthier but less delicious Cereal B is 2% sugar by weight. To make a delicious and healthy mixture that is 5% sugar, what should be the ratio of Cereal A to Cereal B, by weight? Answers:
A) 2:5 B) 3:5 C) 4:7 D) 2:6 E) 1:4
2% is 3%-points below 5% and 10% is 5%-points above 5%.   The ratio of A:B should be 3:5.   The answer is 3:5.
<result>B</result>
Cereal A is 10% sugar by weight, whereas healthier but less delicious Cereal B is 2% sugar by weight. To make a delicious and healthy mixture that is 5% sugar, what should be the ratio of Cereal A to Cereal B, by weight?