GED Mathematical Reasoning Arithmetic and Number Sense 4 — Questions and Answers
Question 1: A car travels 180 miles on 6 gallons of gas. How many miles per gallon does it get?
- 24 mpg
- 28 mpg
- 30 mpg (Correct answer)
- 36 mpg
Correct answer: 30 mpg
180 ÷ 6 = 30 miles per gallon.
Question 2: What is 15% of 320?
- 32
- 38
- 48 (Correct answer)
- 52
Correct answer: 48
15% of 320 = 0.15 × 320 = 48.
Question 3: Which fraction is equivalent to 0.375?
- 1/4
- 3/8 (Correct answer)
- 2/5
- 3/7
Correct answer: 3/8
0.375 = 375/1000 = 3/8 when simplified.
Question 4: A worker earns $17.50 per hour and works 38 hours. What is the gross pay?
- $570.00
- $620.00
- $655.00
- $665.00 (Correct answer)
Correct answer: $665.00
$17.50 × 38 = $665.00.
Question 5: What is the greatest common factor (GCF) of 36 and 48?
- 6
- 8
- 12 (Correct answer)
- 18
Correct answer: 12
The factors of 36 include 12 and of 48 include 12; 12 is the greatest common factor.
Question 6: Order these numbers from least to greatest: -2, 0.5, -1.5, 1/4
- -2, -1.5, 1/4, 0.5 (Correct answer)
- -1.5, -2, 0.5, 1/4
- 0.5, 1/4, -1.5, -2
- -2, -1.5, 0.5, 1/4
Correct answer: -2, -1.5, 1/4, 0.5
On the number line: -2 < -1.5 < 1/4 (0.25) < 0.5.
Question 7: What is 7² − 4²?
- 3
- 9
- 33 (Correct answer)
- 65
Correct answer: 33
7² = 49 and 4² = 16, so 49 − 16 = 33.
GED Mathematical Reasoning Arithmetic and Number Sense 4
A car travels 180 miles on 6 gallons of gas.
How many miles per gallon does it get?