GED practice questions and answers 2026. Tap an option to test yourself — you'll see the correct answer and a plain-English explanation for every question. Free, no login.
Q11On a coordinate plane, line m passes through (0, −1) and (4, 3). What is the slope of any line parallel to m?
✓ Correct answer: A. 1
Slope of m = (3 − (−1)) / (4 − 0) = 4/4 = 1; parallel lines have equal slopes, so any parallel line also has slope 1.
Q12A contractor mixes sand and gravel in the ratio 3:5. If the total mixture weighs 480 kg, how many more kilograms of gravel than sand are in the mixture?
✓ Correct answer: A. 120 kg
Sand = (3/8) × 480 = 180 kg; gravel = (5/8) × 480 = 300 kg; the difference is 300 − 180 = 120 kg.
Q13Evaluate: (−2)⁴ − 4 × 2³ ÷ 8 + (−3)²
✓ Correct answer: D. 21
Order of operations: (−2)⁴ = 16; 4 × 2³ ÷ 8 = 4 × 8 ÷ 8 = 4; (−3)² = 9; so 16 − 4 + 9 = 21.
Q14A laptop's price decreased by 15% and then the reduced price was further cut by 10%. What is the total percentage decrease from the original price?
✓ Correct answer: B. 23.5%
The retained fraction is 0.85 × 0.90 = 0.765, representing a total decrease of 1 − 0.765 = 0.235 = 23.5%; successive percentage reductions multiply, not add.
Q15A line has the equation 3y − 6x = 12. What is the x-intercept of this line?
✓ Correct answer: A. (−2, 0)
The x-intercept occurs where y = 0: substituting gives −6x = 12, so x = −2; the x-intercept is (−2, 0).
Q16A worker earns a $12/hour base wage plus weekly commission. One week she worked 40 hours and earned $680 total. The following week, at the same base and hours, she earned $740. By how much did her weekly commission increase from the first week to the second?
✓ Correct answer: B. $60
Base pay = 40 × $12 = $480; first commission = $680 − $480 = $200; second commission = $740 − $480 = $260; increase = $260 − $200 = $60.
Q17A rectangular garden measures 14 feet long and 9 feet wide. What is the perimeter of the garden?
✓ Correct answer: A. 46 feet
Perimeter of a rectangle = 2(length + width) = 2(14 + 9) = 2(23) = 46 feet.
Q18A bar chart shows monthly rainfall (in inches) for a city: January = 3, February = 2, March = 5, April = 4. What is the mean (average) monthly rainfall for these four months?
✓ Correct answer: C. 3.5 inches
Mean = total ÷ number of months = (3 + 2 + 5 + 4) ÷ 4 = 14 ÷ 4 = 3.5 inches.
Q19A spinner has 8 equal sections numbered 1 through 8. What is the probability of landing on a number greater than 5?
✓ Correct answer: B. 3/8
Numbers greater than 5 are 6, 7, and 8 — that is 3 favorable outcomes out of 8 equal sections, giving a probability of 3/8.
Q20A triangular sail has a base of 12 feet and a height of 7 feet. What is the area of the sail?
✓ Correct answer: A. 42 square feet
Area of a triangle = (1/2) × base × height = (1/2) × 12 × 7 = 42 square feet.
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