GMAT Verbal : GMAT Verbal
Study concepts, example questions & explanations for GMAT Verbal
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Example Questions
Example Question #97 :Identifying And Analyzing Important Details In Social Science Or History Passages
Adapted fromThe Wealth of Nationsby Adam Smith (1776)
The greatest improvements in the productive powers of labor, and the greater part of the skill, dexterity, and judgment with which it is anywhere directed or applied, seem to have been the effects of the division of labor. The effects of the division of labor, in the general business of society, will be more easily understood by considering in what manner it operates in some particular manufactures. It is commonly supposed to be carried furthest in some very trifling ones; not perhaps that it really is carried further in them than in others of more importance, but in those trifling manufactures that are destined to supply the small wants of but a small number of people, the whole number of workmen must necessarily be small; and those employed in every different branch of the work can often be collected into the same workhouse, and placed at once under the view of the spectator.
In those great manufactures, on the contrary, which are destined to supply the great wants of the great body of the people, every different branch of the work employs so great a number of workmen that it is impossible to collect them all into the same workhouse. We can seldom see more, at one time, than those employed in one single branch. Though in such manufactures, therefore, the work may really be divided into a much greater number of parts, than in those of a more trifling nature, the division is not near so obvious, and has accordingly been much less observed.
To take an example, therefore, from a very trifling manufacture, but one in which the division of labor has been very often taken notice of: the trade of a pin-maker. A workman not educated to this business (which the division of labor has rendered a distinct trade), nor acquainted with the use of the machinery employed in it (to the invention of which the same division of labor has probably given occasion), could scarce, perhaps, with his utmost industry, make one pin in a day, and certainly could not make twenty. But in the way in which this business is now carried on, not only the whole work is a peculiar trade, but it is divided into a number of branches, of which the greater part are likewise peculiar trades. One man draws out the wire; another straights it; a third cuts it; a fourth points it; a fifth grinds it at the top for receiving the head; to make the head requires two or three distinct operations; to put it on is a peculiar business; to whiten the pins is another; it is even a trade by itself to put them into the paper; and the important business of making a pin is, in this manner, divided into about eighteen distinct operations, which, in some manufactories, are all performed by distinct hands, though in others the same man will sometimes perform two or three of them.
In every other art and manufacture, the effects of the division of labour are similar to what they are in this very trifling one; though, in many of them, the labour can neither be so much subdivided, nor reduced to so great a simplicity of operation. The division of labour, however, so far as it can be introduced, occasions, in every art, a proportionable increase of the productive powers of labour. The separation of different trades and employments from one another, seems to have taken place, in consequence of this advantage.
How many distinct tasks does the author estimate are involved in manufacturing a pin?
Twelve
Eighteen
Six
Twenty-five
Eighteen
As the author only discusses pin-making in the passage’s last paragraph, we can focus on that paragraph in looking for the answer to this question. At the end of the paragraph, the author writes, “the important business of making a pin is, in this manner, divided into about eighteen distinct operations, which, in some manufactories, are all performed by distinct hands, though in others the same man will sometimes perform two or three of them.” This tells us that the process of pin-making is divided into about eighteen distinct operations, or tasks.
Example Question #1 :Critical Reasoning
Many of the yachts anchored in Miami boast a luxurious hot tub on the top deck. Almost 80% of the yachts that were sold in the past fifteen years in Miami are older models, and none of them had built-in hot tubs.
The information above most strongly supports which of the following?
Some newer yacht models were sold in the past fifteen years in Miami.
Only new yacht models come with hot tubs.
People shopping for yachts will likely choose an older-model with a hot tub than an older-model without a hot tub.
All yachts in Miami without hot tubs were sold in the past fifteen years.
None of the newer yacht models with hot tubs will be sold in the next fifteen years.
Some newer yacht models were sold in the past fifteen years in Miami.
The two pieces of evidence we are offered here do not allow us to make a strong enough conclusion to connect yachts to hot tubs. The first sentence tells us that an unspecified “many” of the yachts in Miami have a hot tub, but we do not know how many of these yachts are older models and how many are newer models. The second sentence tells us that
Example Question #2 :Parallel Reasoning
Everyone who thinks the Rams would win the championship thought that Jones would receive the award for Most Valuable Player. But Jones did not receive the award for Most Valuable Player. Therefore, anyone who believes the Rams will win the championship is wrong.
Which one of the following arguments contains flawed reasoning most similar to that in the argument above?
If you believe in fairies then you do not believe in vampires. Since Cindy believes in vampires, she cannot believe in fairies.
Anyone who thinks chickens are ugly thinks ducks are ugly. Since there is no reason to think ducks are ugly there is no reason to think chickens are ugly.
Anyone that believes that seagulls migrate based on advanced spatial recognition patterns believes that most bird species have highly developed frontal cortexes. But is has been conclusively proven that most bird species do not have highly developed frontal cortexes. Thus, the belief that seagulls migrated based on advanced spatial recognition patterns is false.
Anyone who thinks that eating before exercising is a good idea has never taken a health class. But Jim has never taken a health class and knows that he should not eat before exercising. Therefore, taking a health class is not necessary for you to know eating before exercising is not a good idea.
Anyone who believes animals deserve better treatment believes that animals are capable of moral judgment. You do not believe that animals deserve better treatment so you do not think they are capable of moral judgment.
Anyone that believes that seagulls migrate based on advanced spatial recognition patterns believes that most bird species have highly developed frontal cortexes. But is has been conclusively proven that most bird species do not have highly developed frontal cortexes. Thus, the belief that seagulls migrated based on advanced spatial recognition patterns is false.
正确答案相似之处有缺陷的推理of the stimulus. Both give a situation where the first argument is dismissed on the basis that the second argument presented is false.
Example Question #1 :Critical Reasoning
All English Springer Spaniels have long hair. All Rottweilers have short hair. Each of Tina's dogs is a cross between an English Springer Spaniel and a Rottweiler. Therefore, Tina's dogs have medium-length hair.
下列哪一个使用t破绽百出hat most closely resembles the flawed reasoning used in the argument above?
All typists who practice at least one hour per day can type one hundred words per minute. But some typists who do not practice can also type one hundred words per minute. Mike, a typist, practices thirty minutes per day. Therefore, Mike types fifty words per minute.
All cars made by Chord are very well made. All cars made by Fysler are very poorly made. Half of the cars on Jim's lot are very well made and the other half are very poorly made. Therefore, half of the cars on Jim's lot are Chords and half are Fyslers.
All players on the Wildcats have brown hair. All players on the Razorbacks have red hair. Members of the Moye family are on both the Wildcats and the Razorbacks. Therefore, some members of the Moye family have brown hair and others have red hair.
All halogen gases are toxic to humans. All non-radioactive noble gases are non-toxic to humans. "Nobagen" gas is a mixture of a halogen gas and a noble gas. Therefore, "nobagen" gas is moderately toxic to humans.
All economists know linear algebra. All physicists know relativistic mechanics. Wilma is both an economist and a physicist. Therefore, Wilma knows both linear algebra and relativistic mechanics.
All halogen gases are toxic to humans. All non-radioactive noble gases are non-toxic to humans. "Nobagen" gas is a mixture of a halogen gas and a noble gas. Therefore, "nobagen" gas is moderately toxic to humans.
The flawed reasoning used in the passage is that a combination of two "parent" items with different attributes necessarily yields a "child" product having attributes that are averages of its parents' attributes. The correct answer uses parallel reasoning inasmuch as the argument uses the fact that halogen and noble gases differ with respect to toxicity to conclude that a combination of such gases would yield a gas having toxicity that is the average of the toxicity of its "parent" gases.
Example Question #2 :Critical Reasoning
After replacing her old air conditioner with a new, energy-efficient unit, Paula’s electric bills increased.
Each of the following, if true, contributes to an explanation of the increase mentioned above EXCEPT:
Following the installation of her new air conditioner, Paula's neighborhood experienced a prolonged and severe heat wave, requiring heavy use of the new unit.
Soon after the new air conditioner was installed, Paula adopted a child, doubling the size of her household.
Paula's electricity costs increased by 15 cents per kilowatt hour after she replaced her air conditioner.
Paula installed an electricity-intensive indoor tanning bed after she replaced her air conitioning unit.
The new air conditioner uses a smaller share of the electricity used by Paula’s home than did the old unit.
The new air conditioner uses a smaller share of the electricity used by Paula’s home than did the old unit.
The correct answer here is the one that doesnot解释这个明显的矛盾。我们的新单位es a smaller share of total electricity is consistent with its being more energy efficient. It does not explain how her electric bills could have gone up despite her installation of the more efficient unit; all other answers provide possible resolutions of such apparent paradox.
Example Question #3 :Critical Reasoning
Advertisement: Coma Cola is the best-tasting cola on the market and we conducted a test using over 1000 cola consumers to prove it. Each consumer was given two identical cups filled with a carbonated beverage from the same fountain. One cup was filled with Coma Cola and the other was filled with unadulterated soda water. Ninety-nine percent of the consumers preferred the Coma Cola. So, Coma Cola is the best tasting cola available.
The advertisement’s reasoning is most vulnerable to criticism on the grounds that it fails to consider whether ___________________
Coma Cola is cheaper or more expensive than other colas.
The consumers tested had the opportunity to evaluate colas other than Coma Cola.
The consumers tested had the opportunity to evaluate flavored soft drinks other than colas.
Coma Cola has more or less caffeine than other colas.
Any portion of the population is allergic to any of the ingredients in Coma Cola.
The consumers tested had the opportunity to evaluate colas other than Coma Cola.
广告的说法,昏迷可乐是best tasting cola, is based on 99% percent of cola consumers choosing it over soda water. The flaw in the experimental setup is that just because a consumer chooses Coma Cola over soda water, it does not mean that she will choose Coma Cola over any other cola, let alone over all other colas.
The correct answer recognizes that, in order to validly make such a claim, one would have to show a preference for Coma Cola over other colas, not over soda water (or even over other flavored soft drinks, as one of the incorrect answer choices indicates).
Example Question #4 :Critical Reasoning
Eggplants are always purple. John bought a purple vegetable. Therefore, it was an eggplant.
Which of the following arguments contains reasoning most similar to the flawed reasoning in the above argument?
Gambling is a risky hobby. Jamie likes taking risks. Therefore, she likes to gamble.
Jenny always eats healthy. Salmon is a healthy food. Therefore, she eats salmon.
Bluebirds are not always blue. A brown bird was outside the window. Therefore, it may or may not have been a blue bird.
Rabbits are fast creatures. A fast creature ran by. Therefore, it may have been a rabbit.
Except for 2, prime numbers are always odd. The number 13 is odd. Therefore, it is prime.
Except for 2, prime numbers are always odd. The number 13 is odd. Therefore, it is prime.
In this argument, the flaw is framed in the following way:
X is always Y. A is Y. Therefore, A is X.
(Just because X is always Y does NOT mean that Y is always X.)
The flawed argument is therefore most like:
Except for 2, prime numbers are always odd. The number 13 is odd. Therefore, it is prime.
Here
x= prime numbers
Y = odd
A = 13
The structure of this argument is the same as the structure argument in:
Eggplants are always purple. John bought a purple vegetable. Therefore, it was an eggplant.
X= eggplants
Y = purple
A = purple vegetable
Example Question #5 :Critical Reasoning
Two students were given practice exams. One exam ordered the questions from hardest to easiest, while the other exam ordered the questions from easiest to hardest. The student who took the test with questions ordered hardest to easiest performed more poorly than the other student. Therefore, tests that ordered hardest to easiest will cause a student to perform more poorly.
This argument is most vulnerable to criticism if which of the following statements is true?
The students had the same grade point averages.
The test consisted solely of math questions, rather than being a blend of content.
The student who performed more poorly has a lower grade point average than the other student.
The students took the exam in different classrooms, one of which was more spacious.
One student was from Los Angeles, while the other student was from New York.
The student who performed more poorly has a lower grade point average than the other student.
The conclusion of this argument is that when questions are ordered hardest to easiest, students perform more poorly on them. In order to refute this causal assertion, another source of the poor performance must be introduced. The fact that the student who performed more poorly has a lower grade point average than the other student is a significant intervening cause, and therefore the correct answer.
Example Question #6 :Critical Reasoning
Thousands of people contract tonsillitis every year, and yet all go on to live normal lives after the operation. We can conclude, from this observation, that the tonsils have no function in the body.
The argument would be most weakened by which of the following, if it were true?
Another part of the body can take over the function of the tonsils if they are removed.
The tonsils have been shown to have a vital role to play in the physiology of laboratory rabbits and mice.
The human tonsil develops as part of the immune system, a system of vital importance in defense against disease.
Tonsillectomies are performed only when the tonsils become seriously infected.
People live normal lives after appendectomies, but the appendix is known to be part of the digestive system.
Another part of the body can take over the function of the tonsils if they are removed.
The conclusion states that the tonsils have no function in the body. To weaken this conclusion, we should try to show that the tonsils do in fact have a function, at least at some point in human life. Comparison with another organ is not really useful, as they might be very different from tonsils, and what happens in other animals is also not directly relevant. And discussing where the tonsils develop has nothing to do with their function. Finally, though an organ might develop as part of a system and yet have no function (like the appendix or muscles that wiggle the ear), the only answer left suggests there is a function even though this function can be taken over by another part of the body. This suggestion most weakens the argument posed above.
Example Question #7 :Critical Reasoning
According to an article in a nutritional magazine, eating beets significantly lowers the risk of cancer. The article refers to a study that found that people who consumed one or more beets per day were half as likely to be diagnosed with cancer as people who did not.
Which of the following, if true, most weakens the argument in the magazine article?
Another study found that people who consumed one tablespoon of fish oil per day were more than four times less likely to be diagnosed with cancer as those who did not.
Participants in the study reported consuming no vegetables other than beets.
In another experiment, cancer patients who ate one or more beets per day were no more likely to recover than those who ate no beets.
The study was only conducted in one city.
The participants in the study who ate beets were more likely to exercise regularly than those who did not eat beets.
The participants in the study who ate beets were more likely to exercise regularly than those who did not eat beets.
Because study participants who ate beets were also more likely to exercise regularly than those who did not eat beets, it is impossible to determine whether beets or regular exercise were more influential in preventing cancer. Thus this is the correct answer.
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