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GRE Mock Test (New Pattern) - 8 - GRE MCQ


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30 Questions MCQ Test - GRE Mock Test (New Pattern) - 8

GRE Mock Test (New Pattern) - 8 for GRE 2025 is part of GRE preparation. The GRE Mock Test (New Pattern) - 8 questions and answers have been prepared according to the GRE exam syllabus.The GRE Mock Test (New Pattern) - 8 MCQs are made for GRE 2025 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for GRE Mock Test (New Pattern) - 8 below.
Solutions of GRE Mock Test (New Pattern) - 8 questions in English are available as part of our course for GRE & GRE Mock Test (New Pattern) - 8 solutions in Hindi for GRE course. Download more important topics, notes, lectures and mock test series for GRE Exam by signing up for free. Attempt GRE Mock Test (New Pattern) - 8 | 54 questions in 88 minutes | Mock test for GRE preparation | Free important questions MCQ to study for GRE Exam | Download free PDF with solutions
GRE Mock Test (New Pattern) - 8 - Question 1
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Directions: Choose the word or set of words that best completes the following sentence.

Deborah disliked her teacher’s rambling speeches; she wished he were more __________.

Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 1
The word that fills in the blank must contrast with a teacher who rambles. Were Deborah’s teacher more "laconic" (that is, were he more brief and to the point), then he would not likely deliver rambling speeches. "Loquacious" and "garrulous" both mean talkative, while "pedantic" means strictly concerned with formal rules and book learning.
GRE Mock Test (New Pattern) - 8 - Question 2
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Directions: Choose the word or set of words that best completes the following sentence.

Although Todd tends to be ___________, he used a conversation partner to help him learn French.

Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 2
“Autodidactic” describes someone who learns on his own and teaches himself. The first phrase starting with “although” indicates that the word in the blank must be incompatible with using a conversation partner.
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*Multiple options can be correct
GRE Mock Test (New Pattern) - 8 - Question 3
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Directions: Answer the questions based on following reading passage.

Whether the languages of the ancient American peoples were used for expressing abstract universal concepts can be clearly answered in the case of Nahuatl. Nahuatl, like Greek and German, is a language that allows the formation of extensive compounds. By the combination of radicals or semantic elements, single compound words can express complex conceptual relations, often of an abstract universal character[Line 5].

The tlamatinime (those who know) were able to use this rich stock of abstract terms to express the nuances of their thought. They also availed themselves of other forms of expression with metaphorical meaning, some probably original, some derived from Toltec coinages. Of these forms, the most characteristic in Nahuatl is the juxtaposition of two words that, because they are synonyms, [Line 10] associated terms, or even contraries, complement each other to evoke one single idea. Used metaphorically, the juxtaposed terms connote specific or essential traits of the being they refer to, introducing a mode of poetry as an almost habitual form of expression.

Q. Which of the following can be inferred from the passage regarding present-day research relating to Nahuatl?

Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 3

Choice A is correct: the tlamatinime are mentioned in the first sentence of the second paragraph, where it says they were able to use Nahuatl’s stock of abstract terms “to express the nuances of their thought.” This suggests that there is some evidence of what those thoughts were, and therefore Choice A can be inferred.

Choice B is correct: according to the next sentence, Nahuatl speakers used “forms of expression with metaphorical meaning,” some of which were probably “original” and others “derived from Toltec coinages.” That researchers know certain Nahuatl expressions are derived from Toltec suggests that they are able to trace the derivation of some Nahuatl expressions from another language besides Nahuatl, and therefore Choice B may be inferred.

Choice C is incorrect: the passage says that in Nahuatl there are single compound words that can express conceptual relations of an “abstract universal character” and mentions “other forms of expression with metaphorical meaning,” but it does not indicate whether metaphorical words or phrases are the only way that abstract universal concepts are expressed in Nahuatl, or whether researchers believe this about Nahuatl. Therefore Choice C cannot be inferred.

GRE Mock Test (New Pattern) - 8 - Question 4
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Directions: Answer the questions based on following reading passage.

Whether the languages of the ancient American peoples were used for expressing abstract universal concepts can be clearly answered in the case of Nahuatl. Nahuatl, like Greek and German, is a language that allows the formation of extensive compounds. By the combination of radicals or semantic elements, single compound words can express complex conceptual relations, often of an abstract universal character[Line 5].

The tlamatinime (those who know) were able to use this rich stock of abstract terms to express the nuances of their thought. They also availed themselves of other forms of expression with metaphorical meaning, some probably original, some derived from Toltec coinages. Of these forms, the most characteristic in Nahuatl is the juxtaposition of two words that, because they are synonyms, [Line 10] associated terms, or even contraries, complement each other to evoke one single idea. Used metaphorically, the juxtaposed terms connote specific or essential traits of the being they refer to, introducing a mode of poetry as an almost habitual form of expression.

Q. In the context in which it appears, “coinages” (line 9) most nearly means
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 4
“Coinage” has two senses that are represented among the answer choices: in one sense it denotes coins and currency, while in the other it denotes things—especially words— that are invented. The fifth sentence draws a contrast between linguistic expressions original to Nahuatl and those derived from Toltec. In this context of original versus derived language, “coinages” means “inventions,” not “currencies.” Of the answer choices given, “creations” is the nearest equivalent of “coinages” in the sense of “inventions,” and therefore Choice B is the best answer.
*Multiple options can be correct
GRE Mock Test (New Pattern) - 8 - Question 5
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The increasing gap between the very rich and the desperately poor is one of the most _____ economic trends of our time.
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 5

Many would view a growing disparity between rich and poor as a negative development. Therefore, the correct answers are A) disturbing and E) worrisome. Pervasive, which means widespread, might fit the context of the sentence, but there is no other choice which means the same thing. Unrecognized, which means unknown or unseen, might fit the context of the sentence, but there is no other choice which means the same thing. Asinine, which means extremely stupid or foolish, is incorrect. Combustible, which means explosive or incendiary, does not make sense.

*Multiple options can be correct
GRE Mock Test (New Pattern) - 8 - Question 6
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Professors are often pressured to increase the grades of star athletes, however, I simply cannot do this, as I feel it violates my _____ as an instructor.
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 6

The word however is a clue in this sentence. It is reasonable to assume that many instructors would feel that being forced to change a grade for students is unethical. Therefore, the correct answers are B) integrity and E) ethics. Worth, which means value, would fit the context of the sentence, but there is no other choice with the same meaning. Freedom would fit the context of the sentence, but there is no other choice with the same meaning. Constitution, which can mean the composition of something, would fit the context of the sentence, but there is no other choice with the same meaning. Provenance, which means the origin of something, does not make sense.

GRE Mock Test (New Pattern) - 8 - Question 7
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Directions: Answer the questions based on following reading passage.

Animal signals, such as the complex songs of birds, tend to be costly. A bird, by singing, may forfeit time that could otherwise be spent on other important behaviors such as foraging or resting. Singing may also advertise an individual’s location to rivals or predators and impair the ability to detect their approach. Although these types of cost may be important, discussions of the cost of [Line 5] singing have generally focused on energy costs. Overall the evidence is equivocal: for instance, while Eberhardt found increases in energy consumption during singing for Carolina wrens, Chappell found no effect of crowing on energy consumption in roosters.

To obtain empirical data regarding the energy costs of singing, Thomas examined the relationship [Line 10] between song rate and overnight changes in body mass of male nightingales. Birds store energy as subcutaneous fat deposits or “body reserves”; changes in these reserves can be reliably estimated by measuring changes in body mass. If singing has important energy costs, nightingales should lose more body mass on nights when their song rate is high. Thomas found that nightingales reached a significantly higher body mass at dusk and lost more mass [Line 15] overnight on nights when their song rate was high.

These results suggest that there may be several costs of singing at night associated with body reserves. The increased metabolic cost of possessing higher body mass contributes to the increased overnight mass loss. The strategic regulation of evening body reserves[Line 20] is also likely to incur additional costs, as nightingales must spend more time foraging in order to build up larger body reserves. The metabolic cost of singing itself may also contribute to increased loss of reserves. This metabolic cost may arise from the muscular and neural activity involved in singing or from behaviors associated with singing. For example, birds may expend more of their reserves on thermoregulation if they [Line 25] spend the night exposed to the wind on a song post than if they are in a sheltered roost site. Thomas’s data therefore show that whether or not singing per se has an important metabolic cost, metabolic costs associated with singing can have an important measurable effect on a bird’s daily energy budget, at least in birds with high song rates such as nightingales.

Q. The primary purpose of the passage is to
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 7
As mentioned above, the first paragraph mentions various costs associated with birdsong, but from that point onward, the focus of the passage is on evidence concerning the energy costs of singing, for nightingales in particular. Thus, the correct answer is Choice C. Although the passage mentions other costs, it does not compare them with one another, so Choice A is incorrect. Because the passage does not question any hypotheses, discuss benefits, or advance an alternative model of birdsong, Choices B, D, and E are incorrect.
GRE Mock Test (New Pattern) - 8 - Question 8
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Directions: Answer the questions based on following reading passage.

Animal signals, such as the complex songs of birds, tend to be costly. A bird, by singing, may forfeit time that could otherwise be spent on other important behaviors such as foraging or resting. Singing may also advertise an individual’s location to rivals or predators and impair the ability to detect their approach. Although these types of cost may be important, discussions of the cost of [Line 5] singing have generally focused on energy costs. Overall the evidence is equivocal: for instance, while Eberhardt found increases in energy consumption during singing for Carolina wrens, Chappell found no effect of crowing on energy consumption in roosters.

To obtain empirical data regarding the energy costs of singing, Thomas examined the relationship [Line 10] between song rate and overnight changes in body mass of male nightingales. Birds store energy as subcutaneous fat deposits or “body reserves”; changes in these reserves can be reliably estimated by measuring changes in body mass. If singing has important energy costs, nightingales should lose more body mass on nights when their song rate is high. Thomas found that nightingales reached a significantly higher body mass at dusk and lost more mass [Line 15] overnight on nights when their song rate was high.

These results suggest that there may be several costs of singing at night associated with body reserves. The increased metabolic cost of possessing higher body mass contributes to the increased overnight mass loss. The strategic regulation of evening body reserves[Line 20] is also likely to incur additional costs, as nightingales must spend more time foraging in order to build up larger body reserves. The metabolic cost of singing itself may also contribute to increased loss of reserves. This metabolic cost may arise from the muscular and neural activity involved in singing or from behaviors associated with singing. For example, birds may expend more of their reserves on thermoregulation if they [Line 25] spend the night exposed to the wind on a song post than if they are in a sheltered roost site. Thomas’s data therefore show that whether or not singing per se has an important metabolic cost, metabolic costs associated with singing can have an important measurable effect on a bird’s daily energy budget, at least in birds with high song rates such as nightingales.

Q. The passage implies that during the day before a night on which a male nightingale’s song rate is high, that nightingale probably does which of the following?

[For the following question, consider each of the choices separately and select all that

apply.]
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 8
Choice B is correct.

Choice A is incorrect: the only reference to thermoregulation comes in line 24 and discusses nighttime activity, not daytime activity.

Choice B is correct: the second paragraph explains that birds store energy as fat deposits that can be estimated by measuring body mass, and that body mass at dusk was significantly higher in nightingales on nights when their song rate was higher.

Choice C is incorrect: while the passage does say that singing exposes birds to predators (line 3), it says nothing to suggest that they make special efforts to hide before singing, and in fact it says that nightingales spend extra time foraging (line 20).

GRE Mock Test (New Pattern) - 8 - Question 9
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Directions: Answer the questions based on following reading passage.

Animal signals, such as the complex songs of birds, tend to be costly. A bird, by singing, may forfeit time that could otherwise be spent on other important behaviors such as foraging or resting. Singing may also advertise an individual’s location to rivals or predators and impair the ability to detect their approach. Although these types of cost may be important, discussions of the cost of [Line 5] singing have generally focused on energy costs. Overall the evidence is equivocal: for instance, while Eberhardt found increases in energy consumption during singing for Carolina wrens, Chappell found no effect of crowing on energy consumption in roosters.

To obtain empirical data regarding the energy costs of singing, Thomas examined the relationship [Line 10] between song rate and overnight changes in body mass of male nightingales. Birds store energy as subcutaneous fat deposits or “body reserves”; changes in these reserves can be reliably estimated by measuring changes in body mass. If singing has important energy costs, nightingales should lose more body mass on nights when their song rate is high. Thomas found that nightingales reached a significantly higher body mass at dusk and lost more mass [Line 15] overnight on nights when their song rate was high.

These results suggest that there may be several costs of singing at night associated with body reserves. The increased metabolic cost of possessing higher body mass contributes to the increased overnight mass loss. The strategic regulation of evening body reserves[Line 20] is also likely to incur additional costs, as nightingales must spend more time foraging in order to build up larger body reserves. The metabolic cost of singing itself may also contribute to increased loss of reserves. This metabolic cost may arise from the muscular and neural activity involved in singing or from behaviors associated with singing. For example, birds may expend more of their reserves on thermoregulation if they [Line 25] spend the night exposed to the wind on a song post than if they are in a sheltered roost site. Thomas’s data therefore show that whether or not singing per se has an important metabolic cost, metabolic costs associated with singing can have an important measurable effect on a bird’s daily energy budget, at least in birds with high song rates such as nightingales.

Q. It can be inferred from the passage that compared with other costs of singing, which of the following is true of the energy costs of singing?

[For the following question, consider each of the choices separately and select all that apply.]
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 9
Choice B is correct.

Choice A is incorrect: you might infer that energy costs of singing are significant but no information is given to suggest that they are greater than other costs.

Choice B is correct: lines 4 - 5 say that discussions of the costs of singing have generally focused on energy costs.

Choice C is incorrect: the only mention of differences across species occurs in the discussion of the findings of Eberhardt and Chappell. These findings relate to energy costs alone and, if anything, suggest that energy costs vary considerably.

GRE Mock Test (New Pattern) - 8 - Question 10
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Directions: Choose the word or set of words that best completes the following sentence.

Q. We were all drawn in by the twin babies' __________, wanting to __________ as many hugs as possible from the little __________ duo.
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 10
Because the subjects of this sentence seem to want to hug the two little babies as much as possible it seems likely that the blanks will relate to this urge. “Vivacity” means attractive, lively and fun; “garner” means collect, gather; “dynamic” means energetic, exciting, enjoyable. To provide further help, “eloquence” is the ability to speak clearly and well; “articulate” means eloquent, able to express ideas clearly; “devious” means sneaky; “charisma” means charming and engaging in a way that inspires affection from others; “oblige” means force, make to do; “abstemious” means not indulging in things that you want to do that are dangerous or harmful; “probity” means honesty, being strongly moral; “inveigh” means denounce; “malleable” means bendable, flexible; “hedonism” is the pursuit of pleasure above everything else; “contrive” means cause a situation to arise using deceptive or false methods; “spurious” means fake.
GRE Mock Test (New Pattern) - 8 - Question 11
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Directions: Choose the word or set of words that best completes the following sentence.

Q. My neighbor's well-behaved, __________ son displayed his patience and __________ while he sat still amidst the chaos, refusing to wander and __________ about.
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 11
You are told that the neighbor's son is "well-behaved" and shows "patience." From this information it is reasonable to conclude that the son could be described as "stoic" meaning calm, not emotional, impassive. Further, if the son is demonstrating his patience it makes sense that he is also demonstrating "compliance" or obedience, by not running around and disrupting his parent. Finally, the last blank is clearly related to running around heedlessly, so the correct answer is "ramble." To provide additional help, "irritable" means easily annoyed; "garrison" refers to troops stationed in a fort to protect it; "erudite" means well-educated, scholarly; "gravitas" means dignity; "curtail" means reduce in impact; "fleeting" means not lasting very long; "emigrate" means move to a new country; "apathy" means not caring; "wizened" means ancient, very old; "ignominy" means shame, disgrace; "appropriate" (when used as a verb) means take something not belonging to you and refit it to fit your need.
GRE Mock Test (New Pattern) - 8 - Question 12
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Directions: Choose the word or set of words that best completes the following sentence.

Q. I feel such a strong sense of __________ at the __________ fees charged by my local bank that I am thinking of __________ banking institutions altogether.
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 12
From context it is clear that the author of this sentence has strong feelings about banks; it is not clear what the nature of those feelings are, so you have to try to see which three words fit together logically. The correct answer is, therefore, "indignation" (anger at a perceived injustice, umbrage); "exorbiant" (excessively costly); "eschewing" (abstaining from). To provide additional help, “mendacity” means untruthfulness, dishonesty; “cumbersome” means heavy, a burden; “espousing” means declaring; “credulity” means a tendency to believe everything; “wanton” means random; “delineating” means making a list of; “indulgence” means allowing oneself to gratify a desire; “halcyon” means happy, idyllic, a period of time in the past that was carefree; “jettisoning” means getting rid of; “zealotry” is passion, uncompromising and intense belief in some dogma; “miniscule” means tiny; “remedying” means fixing.
GRE Mock Test (New Pattern) - 8 - Question 13
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Directions: Choose the word or set of words that best completes the following sentence.

Q. The __________ work of Isidore of Seville __________ all known topics of his era into a single text. It was named after his __________ methodology, which utilized grammar and history to explain the origins of the words listed in the tome.
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 13
The final blank of this sentence is probably the best place to start with this question. The methodology described is that of using etymologies, which are the historical origins of a given word. (This was, in fact, the method followed by Isidore of Seville in his aptly named Etymologiae.) For the second blank, notice that the sentence says that the various topics were gathered brought "into a single text." The word that most quickly comes to mind is "gathered." While this is not an option, "collated" is, for it means to collect or gather together. It literally comes from the roots "col-," meaning with or together, and "-late," which here means to bring. (There is an etymology for you, too!) Such a work likely is comprehensive or, as is an option here, "exhaustive."
*Multiple options can be correct
GRE Mock Test (New Pattern) - 8 - Question 14
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Directions: Answer the questions based on following reading passage.

When marine organisms called phytoplankton photosynthesize, they absorb carbon dioxide dissolved in seawater, potentially causing a reduction in the concentration of atmospheric carbon dioxide, a gas that contributes to global warming. However, phytoplankton flourish only in surface waters where iron levels are sufficiently high. Martin therefore hypothesized that adding iron to iron-poor regions of the ocean could help alleviate global warming. While experiments subsequently confirmed that such a procedure increases phytoplankton growth, field tests have shown that such growth does not significantly lower atmospheric carbon dioxide. When phytoplankton utilize carbon dioxide for photosynthesis, the carbon becomes a building block for organic matter, but the carbon leaks back into the atmosphere when predators consume the phytoplankton and respire carbon dioxide.

Q. It can be inferred from the passage that Martin’s hypothesis includes which of the following elements?

[For the following question, consider each of the choices separately and select all that

apply.]
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 14

All three choices are correct.

Martin’s hypothesis was that adding iron to iron-poor regions of the ocean could help alleviate global warming.

Choice A is correct: the passage presents Martin as using the standard understanding of how phytoplankton photosynthesize as a basis for the hypothesis.

Choice B is correct: the passage states that experiments confirmed that adding iron to iron-poor regions increases phytoplankton growth in those regions. Therefore, Martin’s prediction about this was correct.

Choice C is correct: it can be inferred that in Martin’s hypothesis the means by which adding iron in certain regions could alleviate global warming is that phytoplankton increase in those regions and absorb atmospheric carbon dioxide. The passage states that predators who consume phytoplankton respire carbon dioxide, so that the carbon dioxide absorbed by phytoplankton reenters the atmosphere. Therefore, Martin’s prediction about this was incorrect.

GRE Mock Test (New Pattern) - 8 - Question 15
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Directions: Answer the questions based on following reading passage.

When marine organisms called phytoplankton photosynthesize, they absorb carbon dioxide dissolved in seawater, potentially causing a reduction in the concentration of atmospheric carbon dioxide, a gas that contributes to global warming. However, phytoplankton flourish only in surface waters where iron levels are sufficiently high. Martin therefore hypothesized that adding iron to iron-poor regions of the ocean could help alleviate global warming. While experiments subsequently confirmed that such a procedure increases phytoplankton growth, field tests have shown that such growth does not significantly lower atmospheric carbon dioxide. When phytoplankton utilize carbon dioxide for photosynthesis, the carbon becomes a building block for organic matter, but the carbon leaks back into the atmosphere when predators consume the phytoplankton and respire carbon dioxide.

Q. It can be inferred that the author of the passage mentions predators (line 10) primarily in order to

[For the following question, consider each of the choices separately and select all that

apply.]
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 15
Lines 7–11 of the paragraph present the evidence against Martin’s hypothesis. Lines 7–8 present field test results showing that Martin’s hypothesis is incorrect, and the last sentence explains these results: the reason the increased phytoplankton resulting from the addition of iron do not reduce atmospheric carbon dioxide is that while the phytoplankton absorb carbon dioxide, the gas reenters the atmosphere when it is respired by phytoplankton predators. Therefore Choice A is correct: predators are mentioned to explain why Martin’s hypothesis is incorrect. Choice B is not correct because while predators’ consumption of phytoplankton and respiration of carbon dioxide might be considered one indirect consequence of adding iron to iron-poor waters, identifying a consequence is not the primary function of the mention of predators. Choice C is incorrect because the reference to predators is used to explain how carbon dioxide reappears as a gas, and Choice D is incorrect because no connection is suggested between predators and the distribution of phytoplankton. Choice E is not correct because it is Martin who did not anticipate this factor, rather than the scientists who conducted the field tests.
*Multiple options can be correct
GRE Mock Test (New Pattern) - 8 - Question 16
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Unfortunately, the long-term _____ of using such pesticides was not known at the time, and many farmers used them widely without fully understanding their harmful properties.
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 16

The word unfortunately is a clue in this sentence; it indicates that the use of pesticides had a negative impact in some way. Therefore, the correct answers are B) implications and E) ramifications. Benefits and advantages, both of which mean something that promotes or enhances well-being, are incorrect. Alacrity, which means brisk and cheerful readiness, does not make sense. Avarice, which means greed, does not make sense.

*Multiple options can be correct
GRE Mock Test (New Pattern) - 8 - Question 17
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In the more undeveloped, isolated parts of the country, farmers still practice the simple, time-honored techniques of their _____.
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 17

The sentence is referring to an area which is undeveloped and isolated, and it is reasonable to assume that such an area is not likely to be modernized. Therefore, the correct answers are B) forebears and D) ancestors. Descendants, which means a person's offspring, does not make sense. Technicians, which are people trained in a particular technical process, does not make sense. Mentors, who are experienced and trusted advisers, can fit the context of the sentence, but there is no other choice with the same meaning. Germination, which means to cause to sprout or grow, does not make sense.

*Multiple options can be correct
GRE Mock Test (New Pattern) - 8 - Question 18
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Directions: Answer the questions based on following reading passage.

Elements of the Philosophy of Newton, published by Voltaire in 1738, was an early attempt to popularize the scientific ideas of Isaac Newton. In the book’s frontispiece, Voltaire is seen writing at his desk, and over him a shaft of light from heaven, the light of truth, passes through Newton to Voltaire’s collaborator Madame du Châtelet; she reflects that light onto the inspired Voltaire. Voltaire’s book commanded a wide audience, according to Feingold, because “he was neither a mathematician nor a physicist, but a literary giant aloof from the academic disputes over Newtonian ideas.” In other words, Voltaire’s amateurism in science “was a source of his contemporary appeal, demonstrating for the first time the accessibility of Newton’s ideas to nonspecialists.”

Q. Which of the following statements about Voltaire’s Elements of the Philosophy of

Newton can be inferred from the passage?

[For the following question, consider each of the choices separately and select all that

apply.]
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 18

All three choices are correct.

Choice A is correct: the paragraph states that one of the reasons Voltaire’s book commanded a wide audience is that he was “a literary giant.”

Choice B is correct: the paragraph states that Voltaire’s amateurism in science demonstrated that nonspecialists could also understand Newton’s ideas.

Choice C is correct: the paragraph refers to Voltaire’s collaborator, Madame du Châtelet. In the image described, she serves as the intermediary between Newton and Voltaire, conveying Newton’s ideas to Voltaire.

GRE Mock Test (New Pattern) - 8 - Question 19
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Directions: Select a single answer choice.

Q. If which of the following statements describes d in terms of n ?
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 19
To describe d in terms of n, you need to solve the equation d - 3n / 7n - d = 1 for d. To simplify the equation, you can begin by multiplying both sides by 7n - d and then proceed as follows.

The correct answer is Choice E.

GRE Mock Test (New Pattern) - 8 - Question 20
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Directions: Answer the questions on following data.

Percent of Adjunct Faculty and Percent of Non-Adjunct Faculty at College X, by Field

Q. There are 275 students in the field of engineering at College X. Approximately what is the ratio of the number of students in engineering to the number of faculty in engineering?
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 20
According to the graph, 2 percent of the adjunct faculty and 12 percent of the non-adjunct faculty are in the engineering field. To determine the total number of faculty in engineering, you need to add 2 percent of 200, which is 4, to 12 percent of 250, which is 30, to get 34. Thus, the ratio of the numbers of students to faculty in engineering is 275 to 34, which is approximately equal to 280 to 35, or 8 to 1. The correct answer is Choice A.
*Answer can only contain numeric values
GRE Mock Test (New Pattern) - 8 - Question 21
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Directions: Answer the questions on following data.

Percent of Adjunct Faculty and Percent of Non-Adjunct Faculty at College X, by Field

[Use the directions for Numeric Entry questions.]

Q. For the biological sciences and health sciences faculty combined, 1/3 of the adjunct and 2/9 of the non-adjunct faculty are medical doctors. What fraction of all the faculty in those two fields combined are medical doctors?

Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 21

You need to determine the number of adjunct faculty and the number of nonadjunct faculty in the combined group. According to the graph, 5 percent of the adjunct faculty, or 10, and 10 percent of the non-adjunct faculty, or 25, are in the biological sciences. Similarly, 16 percent of the adjunct faculty, or 32, and 8 percent of the non-adjunct faculty, or 20, are in the health sciences. When you combine the groups, you get a total of 42 adjunct faculty (10 + 32) and 45 non-adjunt faculty (25 + 20), which is a total of 87 faculty. Medical doctors are 1 of the 42 adjunct faculty, or 14 adjuncts, and 2/9 of the 45 non-adjunct faculty, 3 or 10 non-adjuncts. Thus, there are 24 medical doctors, and the fraction that are medical doctors is 24/87. The correct answer is 24/87 (or any equivalent fraction). In simplest form 8/29.

*Answer can only contain numeric values
GRE Mock Test (New Pattern) - 8 - Question 22
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Directions: Your answer may be an integer, a decimal, or a fraction, and it may be negative. Enter the exact answer unless the question asks you to round your answer.

Q. The figure above represents a rectangular garden with a walkway around it. The garden is 18 feet long and 12 feet wide. The walkway is uniformly 3 feet wide, and its edges meet at right angles. What is the area of the walkway?

Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 22

You can see from the figure that the shaded region is the region between the two rectangles. Looking at the shaded region in this way suggests that the area of the walkway can be calculated as the difference between the area of the larger rectangle and the area of the smaller rectangle.

The region represented by the smaller rectangle is the garden. Since the garden is 18 feet long and 12 feet wide, its area is (18)(12), or 216 square feet.

The region represented by the larger rectangle is the garden and the walkway combined. The length of the region is the length of the garden plus twice the width of the walkway, or 18 + (2)(3) = 24 feet. The width of the region is the width of the garden plus twice the width of the walkway, or 12 + (2)(3) = 18 feet. Therefore, the area of the region represented by the larger rectangle is (24)(18), or 432 square feet, and the area of the walkway is 432 − 216, or 216 square feet.

Another way to approach this problem is to think of the walkway as being composed of four rectangles and four squares, as shown in the figure below.

Each of the four squares is 3 feet long and 3 feet wide. The two rectangles running along the length of the garden are 18 feet long and 3 feet wide, and the two rectangles running along the width of the garden are 12 feet long and 3 feet wide. Thus, the area of the walkway is

4(3)(3) + 2(18)(3) + 2(12)(3) = 36 + 108 + 72 = 216 square feet

The correct answer is 216.

GRE Mock Test (New Pattern) - 8 - Question 23
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Directions: Directions: Select a single answer choice.

Q. Of the 700 members of a certain organization, 120 are lawyers. Two members of the organization will be selected at random. Which of the following is closest to the probability that neither of the members selected will be a lawyer?
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 23
The probability that neither of the members selected will be a lawyer is equal to the fraction

where the order of selection does not matter.

Since there are 120 members who are lawyers, there must be 700 − 120, or 580 members who are not lawyers. There are 580 ways of selecting a first member who is not a lawyer and 579 ways of selecting a second member who is not a lawyer. Multiplying these two numbers gives the number of ways to select 2 members who are not lawyers. However, in the (580)(579) ways, each group of 2 members who are not lawyers is counted twice. You can see this by considering 2 members, A and B. The 2 members can be chosen in 2 ways: A first, followed by B, and B first, followed by A. To adjust for double counting, you need to divide (580)(579) by 2.

Similarly, the number of ways 2 members can be selected from among the 700 members is (700)(699) divided by 2. Thus, the desired probability is

Since the answer choices are all tenths, you need to approximate the value of this fraction to the nearest tenth. There are several ways to do this approximation. One way is to use your calculator to convert the fraction to a decimal and round the decimal to the nearest tenth.

Another way is to approximate the value of the fraction as follows.

Either way, the answer choice that is closest to the value of the fraction is 0.7. The correct answer is Choice C.

GRE Mock Test (New Pattern) - 8 - Question 24
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Directions: compare Quantity A and Quantity B, using additional information centered above the two quantities if such information is given. Select one of the following four answer choices. A symbol that appears more than once in a question has the same meaning throughout the question.

Q. x2y > 0, xy2 < 0

Quantity A: x

Quantity B: y
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 24
You are given that x2y > 0 which means that the product of the two numbers x2 and y is positive. Recall that the product of two numbers is positive only if both numbers are positive or both numbers are negative. The square of a number is always greater than or equal to 0. In this case, x2 cannot equal 0 because the product x2y is not 0. Thus, x2 is positive and it follows that y is also positive.

You are also given that which means that the product of the two numbers x and y2 is negative. The product of two numbers is negative only if one of the numbers is negative and the other number is positive. In this case, cannot be negative because it is the square of a number, and it cannot be 0 because the product x2y is not 0. Thus, y2 is positive and so x must be negative.

Because x is negative and y is positive, y must be greater than x, and the correct answer is Choice B.

GRE Mock Test (New Pattern) - 8 - Question 25
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Directions: Select a single answer choice.

Q. If x ≠ 0, which of the following is equivalent to

Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 25
To simplify , it can be helpful to write (x2)3 as (x2)(x2)(x2) in the given

expression; that is, . Because x ≠ 0, both numerator and denominator can be divided by x2, and the expression simplifies to x(x2)(x2), which, by the rules of exponents, is equal to x5. Another way to simplify the expression using the rules of exponents directly is as follows.

The correct answer is Choice D.

GRE Mock Test (New Pattern) - 8 - Question 26
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Directions: Select a single answer choice.

Q. Which of the following could be the graph of all values of x that satisfy the inequality

Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 26
To determine which of the graphs is the correct answer, you first need to determine all values of x that satisfy the inequality. To do that you need to simplify the inequality until you isolate x.

You can begin by multiplying both sides of the inequality by 3 to obtain (3)(2 - 5x) ≤ - (6x - 5) . Note that when you multiply by 3, the right-hand side of the inequality becomes −(6x − 5), not −6x − 5. The rest of the simplification is as follows.

(3)(2− 5x ) ≤−6 x + 5

6 − 15x ≤ − 6x + 5

−15x ≤ −6x −1

− 9x ≤ − 1

x ≥ 1/9

Note that when an inequality is multiplied (or divided) by a negative number, the direction of the inequality reverses.

The graphs in the answer choices are number lines on which only the number 0 is indicated. Therefore, you do not need to locate 1/9 on the number line; it is enough to know that 1/9 is a positive number. Choice C is the only choice in which the shaded part of the line is equal to or greater than a positive number. 9 Therefore, the correct answer is Choice C.

GRE Mock Test (New Pattern) - 8 - Question 27
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Directions: Select a single answer choice.

Q. Parallelogram OPQR lies in the xy-plane, as shown in the figure below. The coordinates of point P are (2, 4) and the coordinates of point Q are (8, 6). What are the coordinates of point R?
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 27

Since OPQR is a parallelogram, line segments PQ and OR have the same length and the same slope. Therefore, in the figure above, PQM and ORN are congruent right triangles. From the coordinates of P and Q, the lengths of the legs of triangle PQM are PM = 8 - 2 = 6 and QM = 6 - 4 = 2. Thus, the lengths of the legs ON and RN of triangle ORN are also 6 and 2, respectively. So the coordinates of point R are (6, 2). The correct answer is Choice E.

GRE Mock Test (New Pattern) - 8 - Question 28
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Directions: Select a single answer choice.

Q. The relationship between the area A of a circle and its circumference C is given by the formula A = kC2, where k is a constant. What is the value of k?
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 28
One way to approach this problem is to realize that the value of the constant k is the same for all circles. Therefore, you can pick a specific circle and substitute the circumference and the area of that particular circle into the formula and calculate the value of k.

Say for example, that you pick a circle with radius 1. The area of the circle is p and the circumference of the circle is 2p. Inserting these values into the formula gives π = k(2π)2. Solving this equation for k gives k = 1/4π, and the correct answer is Choice A.

GRE Mock Test (New Pattern) - 8 - Question 29
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Directions: Select a single answer choice.

Q. The sequence of numbers a1, a2, a3, . . . , an, . . . is defined by for each integer n ≥ 1. What is the sum of the first 20 terms of the sequence?
Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 29
This question asks for the sum of the first 20 terms of the sequence. Obviously, it would be very time-consuming to write out the first 20 terms of the sequence and add them together, so it is reasonable to try to find a more efficient way to calculate the sum. Questions involving sequences can often be answered by looking for a pattern. Scanning the answer choices and noting that they contain fractions with denominators 2, 20, 21, and 22, and nothing in between, seems to confirm that looking for a pattern is a good approach to try.

To look for a pattern, begin by adding the first two terms of the sequence.

Now, if you add the first three terms of the sequence, you get.

Note that you can simplify the sum by canceling the fraction 1/3; that is, the sum of positive 1/3 and negative 1/3 is 0.

If you add the first four terms, you get

Again, you can simplify the sum by canceling. This time, you can cancel the fractions 1/3 and 1/4.

If you write out the next two sums and simplify them, you will see that they are

.

Working with the sums makes it clear that this pattern continues to hold as you add more and more terms of the sequence together and that a formula for the sum of the first k terms of the sequence is

Therefore, the sum of the first 20 terms of the sequence is equal to

The correct answer is Choice B.

*Answer can only contain numeric values
GRE Mock Test (New Pattern) - 8 - Question 30
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Directions: Your answer may be an integer, a decimal, or a fraction, and it may be negative. Enter the exact answer unless the question asks you to round your answer.

Q. Line k lies in the xy-plane. The x-intercept of line k is −4, and line k passes through the midpoint of the line segment whose endpoints are (2, 9) and (2, 0). What is the slope of line k? Give your answer as a fraction.

Detailed Solution for GRE Mock Test (New Pattern) - 8 - Question 30

You can calculate the slope of a line if you know the coordinates of two points on the line. In this question you are given information about two points on line k, namely,

  • the point at which line k crosses the x-axis has x-coordinate −4;
  • the midpoint of the line segment with endpoints at (2, 9) and (2, 0) is on line k.

The coordinates of the first point are (−4, 0), since the x-coordinate is −4 and the y-coordinate of every point on the x-axis is 0. For the second point, the midpoint of the line segment is halfway between the endpoints (2, 9) and (2, 0). Thus, the midpoint has x-coordinate 2 and y-coordinate 9, the number halfway between 9 and 0. Based on the coordinates (−4, 0) and (2,9/2), the slope of line k is

The correct answer is 3/4 (or any equivalent fraction).

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