Free GED Practice Exam Questions

 

Exam Name	GED Practice Exam (American Council on Education – ACE)
Exam Provider	American Council on Education (ACE)
Exam Type	High School Equivalency Exam (GED Certification)
Total Practice Questions	180+ Practice Questions (MCQs + Case-Based + Data Analysis) – Updated for 2026
Actual Exam Sections	• Reasoning Through Language Arts (RLA) • Mathematical Reasoning • Science • Social Studies
Questions in Real Exam	• RLA: ~46 Questions • Math: ~46 Questions • Science: ~34 Questions • Social Studies: ~35 Questions Total: ~160 Questions
Exam Duration	• RLA: 150 minutes • Math: 115 minutes • Science: 90 minutes • Social Studies: 70 minutes Total Testing Time: ~7 hours (can be taken separately)
Passing Score	• Minimum Passing Score: 145 per subject • College Ready: 165–174 • College Ready + Credit: 175–200
Scoring System	Each subject is scored on a scale of 100–200 based on performance and accuracy
Coverage Topics	• Math (Algebra, Geometry, Data Analysis, Word Problems) • Science (Biology, Chemistry, Physics, Scientific Reasoning) • Social Studies (Civics, U.S. History, Economics, Geography) • RLA (Reading Comprehension, Grammar, Writing, Essay Skills)
Question Format	• Multiple Choice Questions (MCQs) • Drag-and-Drop & Fill-in-the-Blank • Case-Based & Scenario Questions • Data Interpretation (Charts, Graphs, Tables) • Extended Response (Essay in RLA Section)
Difficulty Level	Beginner to Advanced (Aligned with Real GED Testing Standards)
Skills Developed	• Problem-solving and critical thinking • Reading comprehension and analytical writing • Mathematical reasoning and data interpretation • Scientific analysis and evidence-based reasoning • Civic understanding and real-world application
Study Tips	• Practice solving real-world word problems • Focus on reading comprehension and time management • Learn key math formulas and calculator usage • Understand graphs, charts, and data interpretation • Take full-length timed practice tests regularly • Strengthen weak areas using targeted practice
Best For	Students and adults preparing for GED certification and high school equivalency credentials
Updated	2026 Latest Version

1. Math

What is 25% of 200?
A. 25
B. 40
C. 50
D. 75

Answer: C
Rationale: 25% = 0.25 × 200 = 50.

---

2. Math

Solve: 3x + 6 = 15
A. x = 2
B. x = 3
C. x = 4
D. x = 5

Answer: B
Rationale: 3x = 9 → x = 3.

---

3. Math

What is the area of a rectangle with length 8 and width 5?
A. 13
B. 30
C. 40
D. 45

Answer: C
Rationale: Area = 8 × 5 = 40.

---

4. Science

What is the chemical symbol for water?
A. O2
B. CO2
C. H2O
D. NaCl

Answer: C
Rationale: Water is composed of hydrogen and oxygen.

---

5. Science

Photosynthesis occurs in:
A. Roots
B. Leaves
C. Stem
D. Soil

Answer: B
Rationale: Leaves contain chloroplasts for photosynthesis.

---

6. Science

What force pulls objects toward Earth?
A. Magnetism
B. Gravity
C. Friction
D. Energy

Answer: B
Rationale: Gravity attracts objects toward Earth.

---

7. Social Studies

The U.S. Constitution was written in:
A. 1492
B. 1776
C. 1787
D. 1800

Answer: C
Rationale: Drafted in 1787.

---

8. Social Studies

Who was the first U.S. President?
A. Thomas Jefferson
B. George Washington
C. Abraham Lincoln
D. John Adams

Answer: B
Rationale: Washington served as first president.

---

9. Social Studies

Supply and demand is a concept in:
A. Biology
B. Economics
C. Chemistry
D. Physics

Answer: B
Rationale: It explains market behavior.

---

10. RLA

Choose the correct sentence:
A. She go to school.
B. She goes to school.
C. She going to school.
D. She gone school.

Answer: B
Rationale: Correct verb agreement.

---

11. RLA

What is the main idea?
A. A detail
B. The central point
C. A sentence
D. A paragraph

Answer: B
Rationale: Main idea is the core message.

---

12. RLA

Which word is a synonym for “happy”?
A. Sad
B. Angry
C. Joyful
D. Tired

Answer: C
Rationale: Same meaning.

---

13. Math

What is 7²?
A. 14
B. 21
C. 49
D. 64

Answer: C
Rationale: 7 × 7 = 49.

---

14. Math

Solve: 10 − 3 × 2
A. 14
B. 4
C. 16
D. 7

Answer: B
Rationale: Order of operations → 10 − 6 = 4.

---

15. Science

Which organ pumps blood?
A. Brain
B. Lungs
C. Heart
D. Liver

Answer: C
Rationale: Heart circulates blood.

---

16. Science

Which planet is closest to the sun?
A. Earth
B. Mars
C. Mercury
D. Venus

Answer: C
Rationale: Mercury is nearest.

---

17. Social Studies

What does democracy mean?
A. Rule by one
B. Rule by people
C. Rule by army
D. Rule by king

Answer: B
Rationale: People govern themselves.

---

18. Social Studies

Taxes are used to:
A. Increase population
B. Fund government services
C. Reduce trade
D. Build private homes

Answer: B
Rationale: Supports public services.

---

19. RLA

Which is a complete sentence?
A. Running fast
B. Because she left
C. He completed the test
D. After school

Answer: C
Rationale: Has subject and predicate.

---

20. RLA

What is a noun?
A. Action word
B. Describing word
C. Person, place, or thing
D. Connector

Answer: C
Rationale: Definition of noun.

---

21. Math

What is the square root of 64?
A. 6
B. 7
C. 8
D. 9

Answer: C
Rationale: √64 = 8.

---

22. Math

What is 3/4 as a decimal?
A. 0.25
B. 0.50
C. 0.75
D. 1.25

Answer: C
Rationale: 3 ÷ 4 = 0.75.

---

23. Science

Which state of matter has definite shape and volume?
A. Gas
B. Liquid
C. Solid
D. Plasma

Answer: C
Rationale: Solids maintain shape and volume.

---

24. Science

Evaporation is:
A. Solid to liquid
B. Liquid to gas
C. Gas to liquid
D. Solid to gas

Answer: B
Rationale: Water becomes vapor.

---

25. Social Studies

What is inflation?
A. Decrease in prices
B. Increase in prices
C. Stable prices
D. No change

Answer: B
Rationale: General rise in prices.

---

26. Social Studies

The legislative branch makes:
A. Laws
B. Decisions
C. Policies
D. Judgments

Answer: A
Rationale: Congress creates laws.

---

27. RLA

Which punctuation ends a question?
A. Period
B. Comma
C. Question mark
D. Colon

Answer: C
Rationale: Used for interrogative sentences.

---

28. RLA

Which word is a verb?
A. Run
B. Blue
C. Table
D. Happy

Answer: A
Rationale: Verb expresses action.

---

29. Math

What is 15 + 27?
A. 32
B. 42
C. 52
D. 62

Answer: B
Rationale: 15 + 27 = 42.

---

30. Math

Solve: 2x = 10
A. x = 2
B. x = 3
C. x = 5
D. x = 10

Answer: C
Rationale: Divide both sides by 2 → x = 5.

31. Math

Solve: 2x − 4 = 10
A. x = 5
B. x = 6
C. x = 7
D. x = 8

Answer: C
Rationale: 2x = 14 → x = 7.

---

32. Math

What is the slope of the line through (2,3) and (6,11)?
A. 1
B. 2
C. 3
D. 4

Answer: B
Rationale: (11−3)/(6−2) = 8/4 = 2.

---

33. Math

Simplify: (3² × 3³)
A. 3⁵
B. 9⁵
C. 6⁵
D. 3⁶

Answer: A
Rationale: Add exponents → 3⁵.

---

34. Math

What is the perimeter of a square with side 6?
A. 12
B. 24
C. 36
D. 48

Answer: B
Rationale: 4 × 6 = 24.

---

35. Science

Which organelle produces energy in cells?
A. Nucleus
B. Mitochondria
C. Ribosome
D. Cytoplasm

Answer: B
Rationale: Known as the “powerhouse” of the cell.

---

36. Science

Which gas do plants absorb during photosynthesis?
A. Oxygen
B. Nitrogen
C. Carbon dioxide
D. Hydrogen

Answer: C
Rationale: CO₂ is used to produce glucose.

---

37. Science

What type of energy is stored in food?
A. Kinetic
B. Thermal
C. Chemical
D. Mechanical

Answer: C
Rationale: Stored in chemical bonds.

---

38. Science

Which system controls body functions?
A. Digestive
B. Nervous
C. Respiratory
D. Skeletal

Answer: B
Rationale: Brain and nerves regulate activities.

---

39. Social Studies

The Bill of Rights protects:
A. Government power
B. Individual freedoms
C. Taxes
D. Trade

Answer: B
Rationale: Ensures civil liberties.

---

40. Social Studies

Checks and balances are designed to:
A. Increase power
B. Limit government power
C. Reduce taxes
D. Promote trade

Answer: B
Rationale: Prevents any branch from becoming too powerful.

---

41. Social Studies

GDP measures:
A. Population
B. Economic output
C. Inflation
D. Employment

Answer: B
Rationale: Total value of goods/services.

---

42. Social Studies

The Civil War ended in:
A. 1776
B. 1800
C. 1865
D. 1900

Answer: C
Rationale: End of conflict between North and South.

---

43. RLA

Choose the correct sentence:
A. They was late.
B. They were late.
C. They is late.
D. They be late.

Answer: B
Rationale: Correct plural verb usage.

---

44. RLA

Which word is an adjective?
A. Quickly
B. Run
C. Beautiful
D. Jump

Answer: C
Rationale: Describes a noun.

---

45. RLA

What is the purpose of a conclusion?
A. Introduce topic
B. Summarize main points
C. Add new ideas
D. Give examples

Answer: B
Rationale: Wraps up the text.

---

46. RLA

Which is a compound sentence?
A. She runs.
B. She runs and he walks.
C. Running fast.
D. Because she runs.

Answer: B
Rationale: Two independent clauses joined by conjunction.

---

47. Math

What is 40% of 150?
A. 50
B. 60
C. 70
D. 80

Answer: B
Rationale: 0.40 × 150 = 60.

---

48. Math

Solve: x/5 = 9
A. x = 45
B. x = 40
C. x = 35
D. x = 50

Answer: A
Rationale: Multiply both sides by 5.

---

49. Math

What is the volume of a cube with side 3?
A. 9
B. 18
C. 27
D. 36

Answer: C
Rationale: 3³ = 27.

---

50. Science

Which process turns liquid into solid?
A. Evaporation
B. Condensation
C. Freezing
D. Melting

Answer: C
Rationale: Liquid → solid.

---

51. Science

Which planet is known as the Red Planet?
A. Venus
B. Earth
C. Mars
D. Jupiter

Answer: C
Rationale: Due to iron oxide surface.

---

52. Science

What is the main function of the lungs?
A. Pump blood
B. Exchange gases
C. Digest food
D. Filter toxins

Answer: B
Rationale: Oxygen in, CO₂ out.

---

53. Social Studies

A market economy is based on:
A. Government control
B. Supply and demand
C. Tradition
D. Religion

Answer: B
Rationale: Prices determined by market forces.

---

54. Social Studies

The executive branch is led by:
A. Congress
B. Supreme Court
C. President
D. Senate

Answer: C
Rationale: Head of government.

---

55. RLA

Which sentence uses correct punctuation?
A. I like apples oranges and bananas
B. I like apples, oranges, and bananas
C. I like apples oranges, and bananas
D. I like apples, oranges and bananas,

Answer: B
Rationale: Correct comma usage.

---

56. RLA

Which word is an adverb?
A. Quick
B. Quickly
C. Run
D. Blue

Answer: B
Rationale: Describes action.

---

57. Math

What is the mean of 4, 6, 8, 10?
A. 6
B. 7
C. 8
D. 9

Answer: B
Rationale: (4+6+8+10)/4 = 7.

---

58. Math

Solve: 5² + 3²
A. 25
B. 34
C. 64
D. 28

Answer: B
Rationale: 25 + 9 = 34.

---

59. Science

Which part of the cell contains DNA?
A. Cytoplasm
B. Nucleus
C. Membrane
D. Ribosome

Answer: B
Rationale: DNA stored in nucleus.

---

60. Social Studies

Scarcity means:
A. Unlimited resources
B. Limited resources
C. Equal distribution
D. No demand

Answer: B
Rationale: Resources are limited.

61. Math

A store offers a 20% discount on a $50 item. What is the final price?
A. $30
B. $35
C. $40
D. $45

Answer: C
Rationale: 20% of 50 = 10 → 50 − 10 = 40.

---

62. Math

A car travels 60 miles in 2 hours. What is the average speed?
A. 20 mph
B. 30 mph
C. 40 mph
D. 50 mph

Answer: B
Rationale: Speed = distance/time = 60/2 = 30 mph.

---

63. Math

A triangle has sides 3, 4, and 5. What type is it?
A. Acute
B. Right
C. Obtuse
D. Equilateral

Answer: B
Rationale: 3² + 4² = 5² → right triangle.

---

64. Math

A recipe needs 2/3 cup sugar, but you make half the recipe. How much is needed?
A. 1/3
B. 1/2
C. 2/3
D. 3/4

Answer: A
Rationale: Half of 2/3 = 1/3.

---

65. Science

A plant kept in darkness begins to die. What is the reason?
A. Lack of oxygen
B. No photosynthesis
C. Too much water
D. Lack of soil

Answer: B
Rationale: Light is required for photosynthesis.

---

66. Science

A person touches a hot stove and pulls away instantly. Which system is responsible?
A. Digestive
B. Nervous
C. Circulatory
D. Skeletal

Answer: B
Rationale: Reflex action controlled by nervous system.

---

67. Science

A ball thrown upward eventually falls. Why?
A. Friction
B. Gravity
C. Air pressure
D. Heat

Answer: B
Rationale: Gravity pulls objects downward.

---

68. Science

If a solution becomes more acidic, its pH:
A. Increases
B. Decreases
C. Stays same
D. Doubles

Answer: B
Rationale: Lower pH = higher acidity.

---

69. Social Studies

A law is declared unconstitutional. Which branch made this decision?
A. Executive
B. Legislative
C. Judicial
D. Military

Answer: C
Rationale: Courts interpret laws.

---

70. Social Studies

A country increases taxes and reduces spending. What is the likely goal?
A. Increase inflation
B. Reduce deficit
C. Increase imports
D. Reduce exports

Answer: B
Rationale: Fiscal policy to reduce deficit.

---

71. Social Studies

A worker earns higher wages due to increased skills. This is an example of:
A. Inflation
B. Human capital
C. Scarcity
D. Trade

Answer: B
Rationale: Skills increase economic value.

---

72. Social Studies

A shortage occurs when:
A. Supply exceeds demand
B. Demand exceeds supply
C. Prices drop
D. Market is stable

Answer: B
Rationale: Not enough goods for demand.

---

73. RLA

A paragraph explains reasons for climate change. What is the main purpose?
A. Entertain
B. Inform
C. Persuade
D. Describe

Answer: B
Rationale: Provides information.

---

74. RLA

“Although it rained, we went outside.” This is:
A. Simple sentence
B. Compound
C. Complex
D. Fragment

Answer: C
Rationale: Contains dependent and independent clauses.

---

75. RLA

Which revision improves clarity?
“He did stuff fast.”
A. He did things.
B. He completed the task quickly.
C. He fast did stuff.
D. He stuff quickly.

Answer: B
Rationale: More precise and formal.

---

76. RLA

Which word best replaces “big” in formal writing?
A. Huge
B. Large
C. Massive
D. Enormous

Answer: B
Rationale: Neutral and formal tone.

---

77. Math

A graph shows a line rising from left to right. What is true?
A. Negative slope
B. Positive slope
C. No slope
D. Undefined

Answer: B
Rationale: Increasing line = positive slope.

---

78. Math

If 5 items cost $20, what is cost per item?
A. $2
B. $3
C. $4
D. $5

Answer: C
Rationale: 20 ÷ 5 = 4.

---

79. Math

Solve: x² = 16
A. x = 2
B. x = 4
C. x = ±4
D. x = ±2

Answer: C
Rationale: Square roots → ±4.

---

80. Math

A line crosses y-axis at 3. What is the y-intercept?
A. 0
B. 3
C. -3
D. 1

Answer: B
Rationale: Defined by crossing point.

---

81. Science

Which change is physical?
A. Burning wood
B. Rusting iron
C. Melting ice
D. Cooking food

Answer: C
Rationale: No chemical change.

---

82. Science

Which organ filters blood?
A. Heart
B. Liver
C. Kidney
D. Lungs

Answer: C
Rationale: Removes waste from blood.

---

83. Science

Which force resists motion?
A. Gravity
B. Friction
C. Energy
D. Magnetism

Answer: B
Rationale: Opposes movement.

---

84. Social Studies

Voting is an example of:
A. Economic activity
B. Civic responsibility
C. Trade
D. Law

Answer: B
Rationale: Participation in government.

---

85. Social Studies

A tariff is a tax on:
A. Income
B. Imports
C. Property
D. Sales

Answer: B
Rationale: Applied to imported goods.

---

86. Social Studies

Urbanization refers to:
A. Farming growth
B. City population growth
C. Trade increase
D. Education

Answer: B
Rationale: Movement to cities.

---

87. RLA

Which sentence is grammatically correct?
A. She don’t like apples.
B. She doesn’t like apples.
C. She not like apples.
D. She no like apples.

Answer: B
Rationale: Correct verb form.

---

88. RLA

“The dog barked loudly.” What part of speech is “loudly”?
A. Noun
B. Verb
C. Adverb
D. Adjective

Answer: C
Rationale: Describes how the action is done.

---

89. RLA

An author argues for renewable energy. What is the purpose?
A. Inform
B. Entertain
C. Persuade
D. Describe

Answer: C
Rationale: Attempts to convince.

---

90. RLA

Which transition shows contrast?
A. Therefore
B. Similarly
C. However
D. Finally

Answer: C
Rationale: Indicates opposing idea.

91. Math

A jacket originally costs $80 and is discounted by 25%. What is the sale price?
A. $50
B. $55
C. $60
D. $65

Answer: C
Rationale: 25% of 80 = 20 → 80 − 20 = 60.

---

92. Math

Solve: 4x + 8 = 24
A. x = 2
B. x = 3
C. x = 4
D. x = 5

Answer: C
Rationale: 4x = 16 → x = 4.

---

93. Math

What is the median of 2, 5, 7, 9, 12?
A. 5
B. 7
C. 9
D. 12

Answer: B
Rationale: Middle value = 7.

---

94. Math

A circle has radius 3. What is its area?
A. 6π
B. 9π
C. 12π
D. 18π

Answer: B
Rationale: Area = πr² = 9π.

---

95. Science

Which part of the atom has a positive charge?
A. Electron
B. Proton
C. Neutron
D. Nucleus

Answer: B
Rationale: Protons carry positive charge.

---

96. Science

What is the main function of red blood cells?
A. Fight infection
B. Carry oxygen
C. Digest food
D. Store energy

Answer: B
Rationale: Hemoglobin transports oxygen.

---

97. Science

Which energy source is renewable?
A. Coal
B. Oil
C. Solar
D. Natural gas

Answer: C
Rationale: Solar energy is sustainable.

---

98. Science

Which layer protects Earth from harmful UV rays?
A. Troposphere
B. Ozone layer
C. Core
D. Mantle

Answer: B
Rationale: Ozone absorbs UV radiation.

---

99. Social Studies

The Constitution is considered:
A. Law only
B. Supreme law of the land
C. Policy
D. Treaty

Answer: B
Rationale: Highest legal authority.

---

100. Social Studies

Interest rates are controlled by:
A. Congress
B. Federal Reserve
C. President
D. Courts

Answer: B
Rationale: Central bank manages monetary policy.

---

101. Social Studies

A recession is defined as:
A. Economic growth
B. Economic decline
C. Price increase
D. Population growth

Answer: B
Rationale: Decrease in economic activity.

---

102. Social Studies

The right to free speech is protected by:
A. First Amendment
B. Second Amendment
C. Fourth Amendment
D. Tenth Amendment

Answer: A
Rationale: Ensures freedom of expression.

---

103. RLA

Which sentence is correctly structured?
A. Because she was tired.
B. She was tired, so she slept.
C. Tired because she.
D. She tired so.

Answer: B
Rationale: Complete sentence with conjunction.

---

104. RLA

What is the tone of a passage?
A. Length
B. Author’s attitude
C. Topic
D. Grammar

Answer: B
Rationale: Reflects how the author feels.

---

105. RLA

Which is a run-on sentence?
A. I went home, and I ate dinner.
B. I went home I ate dinner.
C. I went home.
D. I ate dinner.

Answer: B
Rationale: Missing punctuation/conjunction.

---

106. RLA

Which word is a conjunction?
A. Quickly
B. And
C. Blue
D. Jump

Answer: B
Rationale: Connects words/clauses.

---

107. Math

What is 18 ÷ 3 + 2?
A. 8
B. 6
C. 10
D. 12

Answer: A
Rationale: 18 ÷ 3 = 6 → 6 + 2 = 8.

---

108. Math

What is the range of 5, 8, 12, 20?
A. 10
B. 12
C. 15
D. 20

Answer: C
Rationale: 20 − 5 = 15.

---

109. Math

Solve: x − 7 = 10
A. x = 3
B. x = 17
C. x = 10
D. x = -3

Answer: B
Rationale: Add 7 → x = 17.

---

110. Math

A graph slopes downward from left to right. What is true?
A. Positive slope
B. Negative slope
C. Zero slope
D. Undefined

Answer: B
Rationale: Decreasing line = negative slope.

---

111. Science

Which organ controls breathing?
A. Heart
B. Brain
C. Lungs
D. Liver

Answer: B
Rationale: Brain regulates respiration.

---

112. Science

Which change is chemical?
A. Melting
B. Freezing
C. Burning
D. Cutting

Answer: C
Rationale: Produces new substances.

---

113. Science

What is the boiling point of water (Celsius)?
A. 0°C
B. 50°C
C. 100°C
D. 150°C

Answer: C
Rationale: Standard boiling point.

---

114. Social Studies

A monopoly occurs when:
A. Many sellers
B. One seller dominates
C. Many buyers
D. No trade

Answer: B
Rationale: Single seller controls market.

---

115. Social Studies

Immigration refers to:
A. Leaving a country
B. Entering a country
C. Traveling
D. Trading

Answer: B
Rationale: Movement into a country.

---

116. Social Studies

The Supreme Court’s role is to:
A. Make laws
B. Interpret laws
C. Enforce laws
D. Create policy

Answer: B
Rationale: Judicial function.

---

117. RLA

Which word is a pronoun?
A. Run
B. She
C. Blue
D. Quickly

Answer: B
Rationale: Replaces noun.

---

118. RLA

Which sentence is in past tense?
A. She runs
B. She ran
C. She running
D. She run

Answer: B
Rationale: Indicates past action.

---

119. RLA

Which is a persuasive statement?
A. The sky is blue
B. You should recycle to protect the environment
C. Water boils at 100°C
D. The Earth is round

Answer: B
Rationale: Encourages action.

---

120. RLA

Which sentence uses correct capitalization?
A. i live in texas
B. I live in Texas
C. I live in texas
D. i live in Texas

Answer: B
Rationale: Proper nouns capitalized.

121. Math

What is 0.2 × 0.5?
A. 0.01
B. 0.1
C. 1.0
D. 0.25

Answer: B
Rationale: Multiply decimals → 0.2 × 0.5 = 0.1.

---

122. Math

Solve: 3(x − 2) = 12
A. x = 4
B. x = 5
C. x = 6
D. x = 8

Answer: C
Rationale: x − 2 = 4 → x = 6.

---

123. Math

Which fraction is equivalent to 2/5?
A. 4/10
B. 3/10
C. 5/2
D. 6/15

Answer: A
Rationale: Multiply numerator/denominator by 2 → 4/10.

---

124. Math

A number increased by 7 equals 15. What is the number?
A. 6
B. 7
C. 8
D. 9

Answer: C
Rationale: x + 7 = 15 → x = 8.

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125. Science

Which organ system removes waste from the body?
A. Digestive
B. Nervous
C. Excretory
D. Circulatory

Answer: C
Rationale: Kidneys and related organs remove waste.

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126. Science

Which particle has no charge?
A. Proton
B. Electron
C. Neutron
D. Ion

Answer: C
Rationale: Neutrons are neutral.

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127. Science

What happens when ice melts?
A. Chemical change
B. Physical change
C. Nuclear change
D. Biological change

Answer: B
Rationale: No new substance formed.

---

128. Science

Which process releases energy?
A. Photosynthesis
B. Respiration
C. Evaporation
D. Freezing

Answer: B
Rationale: Cellular respiration releases energy.

---

129. Social Studies

Which amendment abolished slavery?
A. 10th
B. 13th
C. 15th
D. 19th

Answer: B
Rationale: 13th Amendment ended slavery.

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130. Social Studies

A surplus occurs when:
A. Demand exceeds supply
B. Supply exceeds demand
C. Prices rise
D. Prices fall

Answer: B
Rationale: Too many goods available.

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131. Social Studies

The purpose of taxes is to:
A. Reduce trade
B. Fund government services
C. Increase population
D. Decrease production

Answer: B
Rationale: Supports public services.

---

132. Social Studies

Which document outlines basic rights and freedoms?
A. Declaration of Independence
B. Bill of Rights
C. Constitution
D. Articles of Confederation

Answer: B
Rationale: First 10 amendments.

---

133. RLA

Which sentence is a fragment?
A. She went home.
B. Running through the park.
C. He completed the test.
D. They are studying.

Answer: B
Rationale: Missing subject or verb.

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134. RLA

Which word is an antonym of “increase”?
A. Grow
B. Expand
C. Decrease
D. Multiply

Answer: C
Rationale: Opposite meaning.

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135. RLA

“The book was fascinating.” What type of word is “fascinating”?
A. Noun
B. Verb
C. Adjective
D. Adverb

Answer: C
Rationale: Describes the book.

---

136. RLA

Which is the correct sentence?
A. He don’t know.
B. He doesn’t know.
C. He not know.
D. He no knows.

Answer: B
Rationale: Correct subject-verb agreement.

---

137. Math

What is 15% of 80?
A. 10
B. 12
C. 15
D. 20

Answer: B
Rationale: 0.15 × 80 = 12.

---

138. Math

Solve: 6 + 2 × 5
A. 40
B. 16
C. 26
D. 60

Answer: B
Rationale: 2×5=10 → 6+10=16.

---

139. Math

What is √81?
A. 7
B. 8
C. 9
D. 10

Answer: C
Rationale: √81 = 9.

---

140. Math

Which number is prime?
A. 9
B. 12
C. 17
D. 21

Answer: C
Rationale: Only divisible by 1 and itself.

---

141. Science

Which organ helps digest food?
A. Heart
B. Brain
C. Stomach
D. Lungs

Answer: C
Rationale: Breaks down food.

---

142. Science

Which force keeps planets in orbit?
A. Friction
B. Gravity
C. Magnetism
D. Heat

Answer: B
Rationale: Gravitational attraction.

---

143. Science

Which is NOT a state of matter?
A. Solid
B. Liquid
C. Gas
D. Energy

Answer: D
Rationale: Energy is not matter.

---

144. Social Studies

Which branch enforces laws?
A. Legislative
B. Judicial
C. Executive
D. Local

Answer: C
Rationale: Executive implements laws.

---

145. Social Studies

Opportunity cost is:
A. Free goods
B. Next best alternative
C. Total profit
D. Total cost

Answer: B
Rationale: Value of what is given up.

---

146. Social Studies

The Cold War was primarily between:
A. US and Germany
B. US and USSR
C. China and Japan
D. France and UK

Answer: B
Rationale: Ideological conflict.

---

147. RLA

Which is a compound word?
A. Quickly
B. Notebook
C. Running
D. Happy

Answer: B
Rationale: Two words combined.

---

148. RLA

Which sentence uses correct punctuation?
A. Lets eat Grandma
B. Let’s eat, Grandma
C. Lets eat, Grandma
D. Let’s eat Grandma

Answer: B
Rationale: Comma changes meaning.

---

149. RLA

Which is the best topic sentence?
A. Dogs are animals.
B. Dogs are loyal companions that provide emotional support.
C. Dogs bark.
D. Dogs run fast.

Answer: B
Rationale: Clear and specific.

---

150. RLA

Which transition shows cause and effect?
A. However
B. Because
C. Similarly
D. Finally

Answer: B
Rationale: Indicates reason.

151. Math

Solve: 5x − 10 = 15
A. x = 3
B. x = 4
C. x = 5
D. x = 6

Answer: C
Rationale: To solve the equation, first add 10 to both sides to isolate the term with x. This gives 5x = 25. Then divide both sides by 5 to find x = 5. This step-by-step approach ensures proper isolation of the variable and avoids common algebra mistakes.

---

152. Math

What is 30% of 90?
A. 18
B. 21
C. 27
D. 30

Answer: C
Rationale: Convert 30% to decimal form (0.30) and multiply by 90. This gives 27. Understanding percentage conversion is essential for solving real-life problems such as discounts, taxes, and financial calculations on standardized tests.

---

153. Math

Simplify: 8² ÷ 4
A. 8
B. 12
C. 16
D. 32

Answer: C
Rationale: First evaluate the exponent: 8² = 64. Then divide 64 by 4 to get 16. Following the order of operations (PEMDAS) ensures correct results and prevents calculation errors commonly seen in test settings.

---

154. Math

What is the slope of a horizontal line?
A. Undefined
B. 0
C. 1
D. -1

Answer: B
Rationale: A horizontal line has no vertical change, meaning the rise is zero while the run can be any value. Since slope = rise/run, the slope equals 0. Recognizing graph patterns is key for interpreting coordinate plane problems.

---

155. Science

Which organ regulates blood sugar levels?
A. Liver
B. Pancreas
C. Kidney
D. Heart

Answer: B
Rationale: The pancreas produces insulin and glucagon, hormones responsible for maintaining blood glucose levels. Insulin lowers blood sugar while glucagon raises it. This balance is essential for energy regulation and preventing conditions like diabetes.

---

156. Science

Which type of energy is associated with motion?
A. Potential
B. Chemical
C. Kinetic
D. Thermal

Answer: C
Rationale: Kinetic energy is the energy of motion, meaning any moving object possesses it. The faster an object moves, the greater its kinetic energy. This concept is fundamental in physics and appears frequently in GED science questions.

---

157. Science

What happens during condensation?
A. Solid to liquid
B. Liquid to gas
C. Gas to liquid
D. Solid to gas

Answer: C
Rationale: Condensation occurs when a gas cools and changes into a liquid. For example, water vapor forming droplets on a cold surface. This process is part of the water cycle and is essential for understanding weather patterns.

---

158. Science

Which system transports oxygen in the body?
A. Digestive
B. Circulatory
C. Nervous
D. Skeletal

Answer: B
Rationale: The circulatory system, including the heart, blood, and blood vessels, transports oxygen throughout the body. Red blood cells carry oxygen from the lungs to tissues, supporting cellular respiration and energy production.

---

159. Social Studies

What is the primary role of the legislative branch?
A. Enforce laws
B. Interpret laws
C. Make laws
D. Execute policies

Answer: C
Rationale: The legislative branch, primarily Congress, is responsible for creating laws. This includes drafting, debating, and passing legislation. Understanding the separation of powers is essential for GED civics questions.

---

160. Social Studies

What does inflation decrease?
A. Prices
B. Purchasing power
C. Demand
D. Supply

Answer: B
Rationale: Inflation causes prices to rise, which reduces the purchasing power of money. This means consumers can buy fewer goods and services with the same amount of money, impacting savings and cost of living over time.

---

161. Social Studies

What is a primary election?
A. Final election
B. Election to choose candidates
C. Law-making session
D. Budget approval

Answer: B
Rationale: A primary election allows voters to select candidates who will represent their party in the general election. It is a key part of the democratic process, ensuring voter participation in candidate selection.

---

162. Social Studies

What is supply?
A. Need for goods
B. Quantity available
C. Price level
D. Demand curve

Answer: B
Rationale: Supply refers to the amount of goods or services available for sale at different prices. It interacts with demand to determine market prices, making it a fundamental concept in economics.

---

163. RLA

Which sentence is correct?
A. She don’t understand
B. She doesn’t understands
C. She doesn’t understand
D. She not understand

Answer: C
Rationale: Correct subject-verb agreement requires “doesn’t” with base verb “understand.” The verb should not include an extra “s.” Grammar accuracy is critical in GED language arts sections.

---

164. RLA

What is the main idea of a passage?
A. Supporting detail
B. Central message
C. Example
D. Title

Answer: B
Rationale: The main idea represents the central point or message the author wants to convey. It is supported by details and examples. Identifying the main idea is a key reading comprehension skill tested on the GED.

---

165. RLA

Which word is a verb?
A. Quickly
B. Run
C. Blue
D. Table

Answer: B
Rationale: A verb expresses an action or state of being. “Run” is an action verb, while the other options represent different parts of speech. Recognizing verbs is essential for sentence structure questions.

---

166. RLA

Which is a complete sentence?
A. Running quickly
B. Because she left
C. He finished his work
D. After the meeting

Answer: C
Rationale: A complete sentence must have both a subject and a predicate. “He finished his work” includes both, while the others are fragments lacking complete thought or structure.

---

167. Math

What is the mean of 10, 20, 30?
A. 15
B. 20
C. 25
D. 30

Answer: B
Rationale: Add the numbers (10 + 20 + 30 = 60) and divide by the total count (3). The mean is 20. This concept is commonly used in data analysis questions on standardized exams.

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168. Math

Solve: x + 9 = 21
A. x = 10
B. x = 11
C. x = 12
D. x = 13

Answer: C
Rationale: Subtract 9 from both sides to isolate x. This gives x = 12. Simple algebraic equations require careful balancing of both sides to maintain equality.

---

169. Math

What is the area of a triangle with base 6 and height 4?
A. 12
B. 24
C. 10
D. 14

Answer: A
Rationale: Area = ½ × base × height = ½ × 6 × 4 = 12. Understanding geometric formulas is essential for solving GED math problems involving shapes and measurements.

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170. Math

What is 9³?
A. 81
B. 243
C. 729
D. 512

Answer: C
Rationale: 9³ means 9 × 9 × 9 = 729. Exponents represent repeated multiplication, and mastering them is important for algebra and scientific calculations.

---

171. Science

Which gas is essential for human respiration?
A. Nitrogen
B. Oxygen
C. Carbon dioxide
D. Hydrogen

Answer: B
Rationale: Oxygen is required for cellular respiration, where cells produce energy. Without oxygen, the body cannot efficiently generate ATP, leading to life-threatening conditions.

---

172. Science

Which organ filters toxins from blood?
A. Heart
B. Liver
C. Brain
D. Lungs

Answer: B
Rationale: The liver detoxifies harmful substances, processes nutrients, and produces bile. It plays a vital role in maintaining internal balance and overall health.

---

173. Science

What is the boiling point of water in Celsius?
A. 0°C
B. 50°C
C. 100°C
D. 150°C

Answer: C
Rationale: Water boils at 100°C under standard atmospheric pressure. This is a fundamental scientific fact frequently tested in GED science sections.

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174. Science

Which type of energy is stored in batteries?
A. Kinetic
B. Thermal
C. Chemical
D. Mechanical

Answer: C
Rationale: Batteries store chemical energy, which is converted into electrical energy when used. Understanding energy transformations is key in science questions.

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175. Social Studies

What does the executive branch do?
A. Make laws
B. Interpret laws
C. Enforce laws
D. Create courts

Answer: C
Rationale: The executive branch, led by the president, ensures laws are carried out. This includes overseeing federal agencies and implementing policies.

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176. Social Studies

What is unemployment?
A. Working full-time
B. Lack of jobs
C. High wages
D. Economic growth

Answer: B
Rationale: Unemployment occurs when individuals who are willing and able to work cannot find jobs. It is a key economic indicator used to assess economic health.

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177. Social Studies

What is a democracy?
A. Rule by king
B. Rule by people
C. Rule by army
D. Rule by elite

Answer: B
Rationale: In a democracy, citizens have the power to vote and influence government decisions. It emphasizes participation, equality, and representation.

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178. Social Studies

What is trade?
A. Buying only
B. Selling only
C. Exchange of goods/services
D. Tax system

Answer: C
Rationale: Trade involves exchanging goods and services between individuals or countries. It allows specialization and increases economic efficiency.

---

179. RLA

Which word is an adjective?
A. Quickly
B. Happy
C. Run
D. And

Answer: B
Rationale: An adjective describes a noun. “Happy” describes a state or quality, while the other options represent different parts of speech.

---

180. RLA

Which sentence uses correct punctuation?
A. Its raining
B. It’s raining
C. Its’ raining
D. It raining

Answer: B
Rationale: “It’s” is the contraction for “it is.” Proper punctuation is essential for clarity and correctness in written communication, a key GED skill.