Question

Three subway cars, A, B, and C, each have areas of 500 square feet. A, B, and C have 200, 50, and 75 riders, respectively. Which fraction represents the density of the least dense car? 

Answer 1

The density is given by number of persons/area. Since the car that have the minimun amount of people is car B, then the fraction that represents the density of the least dense car is

$\frac{50}{500}=\frac{1}{10}$

1/10