If a mixture is 3⁄5 alcohol by volume and 4⁄5 water by volume, what is the ratio of the volume of alcohol to the volume of water in this mixture?
Choose the correct choice from the following options:
A) 1 / 3  B) 3 / 2  C) 3 / 4  D) 3  E) 3 / 5

Rationale: "should be a sub - 600 level q . . volume = { 3 / 5 } / { 4 / 5 } = 3 / 4 c"
Answer: C