Engine Performance
Work Example 22

WorkKey Level: 4
NATEF Automotive Tasks: Background

Problem:

Joe is keeping a log of mileage in his new car. Complete the following chart.

Mileage	Miles Traveled	Gallons Purchased	Miles Per Gallon
720	**********	**********	**********
1080		18
1424		17
1803		16

1. Is his mileage getting better or worse?
   a. Better
   b. Worse
   c. About the same
   

2. What is his average miles per gallon?
   a. about 17 mpg
   b. about 19 mpg
   c. about 21 mpg
   d. about 23 mpg

Solution:

Mileage	Miles Traveled	Gallons Purchased	Miles Per Gallon
720	**********	**********	**********
1080	360	18	20
1424	344	17	20.2
1803	379	16	23.7

1. a. Better

2. mpg =
   
   Avg = (20+20.2+23.7)/3 = 63.9/3 = 21.3
   
   c. About 21 mpg