Question

An automobile that gets 40 mpg on a 200-mile trip uses what fraction of gasoline compared to an automobile that gets 20 mpg for the same trip?

A. 1/4 the amount
B. 1/2 the amount
C. 1 1/4 the amount
D. 1 1/2 the amount
E. 2 times the amount

Answer 1

The automobile that gets 40 mpg uses 1/2 the amount of gasoline compared to the automobile that gets 20 mpg.

Step-by-step explanation:

To compare the amount of gasoline used by two automobiles, we can calculate the gallons of gasoline used by each automobile for a 200-mile trip. The automobile that gets 40 mpg will use 5 gallons of gasoline (200 miles / 40 mpg = 5 gallons). The automobile that gets 20 mpg will use 10 gallons of gasoline (200 miles / 20 mpg = 10 gallons). Comparing these amounts, the automobile that gets 40 mpg uses 1/2 the amount of gasoline compared to the automobile that gets 20 mpg.