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GED Mock Test
A timed 25-question mock for the GED Test covering algebra, percentages, geometry & mensuration, english grammar, world general knowledge. Answer, submit and review every question with its explanation; set negative marking to match your exam’s current scheme.
GED mock test
25 questions · 1 mark each · the timer starts with your first answer and the test submits itself when time runs out.
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Q1.AlgebraFind the sum of the first 11 terms of the AP 14, 18, 22, …
Answer: D — 374
Sₙ = n/2 × [2a + (n − 1)d] = 11/2 × [28 + 40] = 374.
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Q2.PercentagesThe price of an item changes from $575 to $431.25. What is the percentage change?
Answer: B — 25% decrease
Change = -143.75 on a base of 575: -143.75/575 × 100 = 25% decrease. Always divide by the ORIGINAL value.
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Q3.Geometry & MensurationFind the volume of a cylinder with radius 7 cm and height 12 cm.
Answer: D — 1,847.26 cm³
Using πr²h with π = 3.1416: 1,847.26 cm³.
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Q4.English GrammarChoose the correct option: Scarcely ___ the room when the lights went out.
Answer: B — had I entered
Negative adverbs at the start (scarcely, hardly) cause inversion: “had I entered”.
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Q5.World General KnowledgeThe Olympic Games originated in ancient:
Answer: B — Greece
They began at Olympia, Greece, traditionally in 776 BCE.
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Q6.AlgebraFind log₃ 243.
Answer: B — 5
log_3(243) asks “3 to what power gives 243?” → 3^5 = 243, so the answer is 5.
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Q7.PercentagesThe price of an item changes from $750 to $810. What is the percentage change?
Answer: A — 8% increase
Change = 60 on a base of 750: 60/750 × 100 = 8% increase. Always divide by the ORIGINAL value.
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Q8.Geometry & MensurationA right triangle has legs 9 cm and 12 cm. Find the hypotenuse.
Answer: A — 15 cm
By Pythagoras, hypotenuse = √(9² + 12²) = √225 = 15.
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Q9.English GrammarChoose the correct form: By the time we arrived, the film ___.
Answer: D — had already started
An action completed before another past action takes the past perfect: “had already started”.
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Q10.World General KnowledgeThe Amazon rainforest is mostly located in:
Answer: D — Brazil
About 60% of the Amazon rainforest is in Brazil.
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Q11.AlgebraFind log₅ 25.
Answer: A — 2
log_5(25) asks “5 to what power gives 25?” → 5^2 = 25, so the answer is 2.
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Q12.PercentagesTwo successive discounts of 30% and 10% are equivalent to a single discount of:
Answer: D — 37%
Net discount = a + b − ab/100 = 30 + 10 − 30×10/100 = 37%.
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Q13.Geometry & MensurationFind the volume of a sphere of radius 10 cm.
Answer: C — 4,188.79 cm³
Using (4/3)πr³ with π = 3.1416: 4,188.79 cm³.
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Q14.English GrammarChoose the correct option: He insisted ___ paying the bill.
Answer: D — on
“Insist” takes the preposition “on” + gerund.
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Q15.World General KnowledgeWhich gas makes up most of Earth’s atmosphere?
Answer: A — Nitrogen
Nitrogen is about 78% of the atmosphere.
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Q16.AlgebraFind log 100 (base 10).
Answer: D — 2
log_10(100) asks “10 to what power gives 100?” → 10^2 = 100, so the answer is 2.
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Q17.PercentagesThe price of an item changes from $150 to $168.75. What is the percentage change?
Answer: A — 12.5% increase
Change = 18.75 on a base of 150: 18.75/150 × 100 = 12.5% increase. Always divide by the ORIGINAL value.
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Q18.Geometry & MensurationFind the distance between (1, -3) and (9, 12).
Answer: C — 17
Distance = √((Δx)² + (Δy)²) = √(8² + 15²) = 17.
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Q19.English GrammarChoose the correct option: He prefers tea ___ coffee.
Answer: C — to
“Prefer X to Y” is the correct pattern.
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Q20.World General KnowledgeMount Everest lies on the border of Nepal and:
Answer: D — China (Tibet)
Everest is on the Nepal–China (Tibet) border.
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Q21.PercentagesThe price of an item changes from $525 to $590.63. What is the percentage change?
Answer: C — 12.5% increase
Change = 65.63 on a base of 525: 65.63/525 × 100 = 12.5% increase. Always divide by the ORIGINAL value.
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Q22.Geometry & MensurationFind the area of a right triangle with legs 6 cm and 8 cm.
Answer: D — 24 cm²
Area = ½ × base × height = ½ × 6 × 8 = 24 cm².
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Q23.English GrammarChoose the correct option: Neither the manager nor the clerks ___ present.
Answer: C — were
With neither…nor, the verb agrees with the nearer subject (“clerks”, plural) → were.
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Q24.World General KnowledgeThe Magna Carta was signed in:
Answer: D — 1215
King John sealed it in 1215.
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Q25.AlgebraFind the sum of the first 13 terms of the AP 5, 10, 15, …
Answer: C — 455
Sₙ = n/2 × [2a + (n − 1)d] = 13/2 × [10 + 60] = 455.
How the mock test works
- The timer starts with your first answer; the test submits itself when time runs out.
- Choose the negative marking that matches your exam (this test has no negative marking by default — check the official notification).
- After submitting you get your score, accuracy, time taken and a topic-wise breakdown, then every explanation.
- “New mock test” builds another paper — calculation questions get new numbers.
About GED
GED Test — conducted by GED Testing Service. A high-school equivalency credential covering math, language arts, science and social studies.
Original practice questions written for this site in the style and difficulty of each exam’s syllabus. They are not past papers and the site is not affiliated with any exam body. Exam patterns, marking schemes and syllabi change — always check the latest official notification.
GED practice topics
| Topic | Section | Question source |
|---|---|---|
| Algebra | Mathematics | Calculated (new numbers every set) |
| Percentages | Quantitative aptitude | Calculated (new numbers every set) |
| Geometry & Mensuration | Mathematics | Calculated (new numbers every set) |
| English Grammar | English | Question bank |
| World General Knowledge | General awareness | Question bank |