If a mixture is 5⁄9 alcohol by volume and 4⁄9 water by volume, what is the ratio of the volume of alcohol to the volume of water in this mixture?	Answers: A) 1 / 4 B) 3 / 4 C) 5 / 4 D) 6 / 4 E) 7 / 4

Rationale: "should be a sub - 600 level q . . volume = { 5 / 9 } / { 4 / 9 } = 5 / 4 c"
Answer: C