Question: city x has a population 8 times as great as the population of city y , which has a population twice as great as the population of city z . what is the ratio of the population of city x to the population of city z ?
A) 1 : 8
B) 1 : 4
C) 2 : 1
D) 4 : 1
E) 16 : 1
Correct answer: e
Grade: 7 | Topic: Ratios and proportions | Difficulty: Hard | Standard: 7.RP.A.3