GED Math Test #8 2 — Questions and Answers
Question 1: What is 3/8 ÷ 3/4?
- 1/2 (Correct answer)
- 9/32
- 1/4
- 2/3
Correct answer: 1/2
To divide fractions, multiply by the reciprocal: 3/8 × 4/3 = 12/24 = 1/2. Always keep the first fraction, change division to multiplication, and flip the second fraction.
Question 2: A line graph shows sales: Jan=$5,000; Feb=$7,500; Mar=$6,000; Apr=$9,000. What was the average monthly sales?
- $6,875 (Correct answer)
- $7,000
- $6,500
- $7,500
Correct answer: $6,875
Average = (5,000 + 7,500 + 6,000 + 9,000) ÷ 4 = 27,500 ÷ 4 = $6,875.
Question 3: Which expression is equivalent to −(3x − 2y + 5)?
- −3x + 2y − 5 (Correct answer)
- 3x − 2y − 5
- −3x − 2y − 5
- −3x + 2y + 5
Correct answer: −3x + 2y − 5
Distribute the negative sign to each term: −1(3x) = −3x; −1(−2y) = +2y; −1(5) = −5. Result: −3x + 2y − 5.
Question 4: A box has dimensions 4 ft × 3 ft × 2 ft. What is its volume?
- 24 ft³ (Correct answer)
- 26 ft³
- 48 ft³
- 12 ft³
Correct answer: 24 ft³
Volume of a rectangular prism = length × width × height = 4 × 3 × 2 = 24 ft³.
Question 5: If 5 workers can complete a job in 12 days, how many days will it take 3 workers at the same rate?
- 20 days (Correct answer)
- 15 days
- 18 days
- 24 days
Correct answer: 20 days
Total work = 5 × 12 = 60 worker-days. With 3 workers: 60 ÷ 3 = 20 days. This is an inverse proportion problem.
Question 6: What is the range of the data set: 5, 12, 7, 19, 3, 15, 9?
- 16 (Correct answer)
- 10
- 19
- 14
Correct answer: 16
Range = maximum − minimum = 19 − 3 = 16. The range measures the spread of the data.
GED Math Test #8 2
What is 3/8 ÷ 3/4?