Free LSAT Analytical Reasoning Questions and Answers
For a new project, a landscape architect is choosing trees. Seven different tree species are available for the architect to select from: a Maple, a River Birch, an Oak, a Sycamore, a Chestnut, a Blue Spruce, and a Pine. The trees will be planted in two different locations, designated as area 1 and area 2, respectively. The following restrictions must be followed while planting the trees:
โฅ There are only three distinct tree species in each area, and there are three different species in each area.
โฅ In any location, no more than one tree of the same kind may be planted.
โฅ If a river birch is present, neither a blue spruce nor a pine may grow there.
โฅ A river birch or an oak must also be present where there is a sycamore tree.
โฅ Where there is an oak, there must also be a maple.
Which of the following CANNOT be true?
A server at a restaurant accepted verbal orders from a sizable crowd of customers without writing anything down, yet still managed to properly deliver everyone's meal. However, the waiter failed to identify the customer when he returned a few hours later to get something he had left behind. The waiter responded that he only recalled the specifics of each order until it was presented, which the customer saw as a mismatch between the waiter's prior good recollection of what each customer in the huge group had ordered and his present inability to recognize him.
Which one of the following principles is best illustrated by the incident described above?
The event is described in the section when a waiter at a restaurant who was able to accurately recall every detail of each customer's unique orders for a sizable group of customers failed to recognize one of those customers a few hours later. The server said that he only recalled the specifics of each order until the order was served, which contrasted with the customer's eventual forgetting.
For a new project, a landscape architect is choosing trees. Seven different tree species are available for the architect to select from: a Maple, a River Birch, an Oak, a Sycamore, a Chestnut, a Blue Spruce, and a Pine. The trees will be planted in two different locations, designated as area 1 and area 2, respectively. The following restrictions must be followed while planting the trees:
โฅ There are only three distinct tree species in each area, and there are three different species in each area.
โฅ In any location, no more than one tree of the same kind may be planted.
โฅ If a river birch is present, neither a blue spruce nor a pine may grow there.
โฅ A river birch or an oak must also be present where there is a sycamore tree.
โฅ Where there is an oak, there must also be a maple.
If a river birch is not selected, which of the following CANNOT be true?
Most of the legal changes recommended by the Feminist Group for Rights are put into effect five years after their initial recommendation. Therefore, it is likely that the first set of legal reforms proposed by this group at the conference today would be put into effect within five years.
Which of the following arguments follows a logic most similar to the one in the previous argument?
The text in question makes the following claim:
Most of the legal changes proposed by the Feminist Group for Rights have already been put into effect five years after the first proposal.
Therefore, the law reforms first suggested by this group at the convention today are likely to be implemented within five years.
The World Tribune's print circulation has decreased by 40% during the last two years. However, at the same time period, there was a 30% rise in internet visitors for the newspaper. The most popular web pages on the internet are the several news sections and blogs that are not included in the print newspaper. As a result, in order to continue making money, the newspaper has chosen to stop publishing its still-profitable print version and add additional content to its internet that is similar to the exclusive content on its most popular pages. Which one of the following is an assumption on which the decision of The World Tribune depends?
Sam scored in the top one percent of test takers on a test that measures a person's recall for spatial arrangements. This suggests that his memory will be below average for information that does not entail spatial layouts. The conclusion follows logically if which one of the following is assumed?
Sam scored in the top one percent of all test takers on a test that measures people's spatial memory abilities. This indicates that he will have a below-average recall for information that does not entail spatial layouts.
Marky: The majority of online websites contain a large number of alluring and difficult-to-ignore hyperlinks, each of which leads to another hyperlink, and so on. The capacity of frequent internet users to do difficult thinking that necessitates focus and attention is reduced as a result of often slipping into this bottomless pit of distracting and mainly unimportant material on the internet.
Clark: A study indicated that regular internet users performed better on tests of focus and attention than infrequent users and also had stronger brain muscles in the regions of the brain linked to complicated reasoning, which implies a higher utilization of these muscles.
The dialogue most strongly supports the claim that Marky and Clark disagree with each other about whether
According to Marky, the majority of online web pages contain several alluring and difficult-to-ignore hyperlinks. Each of these links refers to more links, and so forth. According to Marky, this chain of "link 1 leading to link 2 leading to link 3..." creates a "bottomless hole of distracting and mostly trivial information," which regularly falls into by internet users makes it harder for them to perform complex reasoning that needs focus and attention.
In response, Clark cites a study that showed that regular internet users performed better on attention tests than infrequent users and also had higher levels of activity in the brain regions linked to sophisticated reasoning.
All of our rivals, according to the chief executive officer of Noan Industries, are solely interested in boosting their earnings and do not care about the environmental damage that their product-manufacturing process produces. In contrast, we have had Green Org, a reputable worldwide organization that tracks industrial pollution, audit our product-manufacturing process for its environmental effect. Therefore, our consumers can be confident that they are purchasing from an ecologically conscious business when they choose to do business with us. The answer to which one of the following questions would be most useful in evaluating the truth of the conclusion drawn by the Chief Executive Officer?
Mayor of the City: Since the beginning of this year, when driving fossil fuel-powered vehicles older than five years on city roads was prohibited, air pollution has decreased dramatically. Therefore, if all fossil fuel-powered vehicles are prohibited from operating on city roadways, urban air pollution will be eliminated.
The argument made by the city mayor is faulty because it
The mayor of the city reports that since the restriction on driving fossil-fuel powered vehicles older than five years on city roads began at the beginning of this year, air pollution has progressively decreased.
The mayor then concludes that if all the remaining fossil-fuel powered cars in the city are also banned, air pollution will end in the city. Note that the city mayor does not establish that fossil-fuel powered cars are the only source of air pollution in the city.
The question asks us to find the flaw in the argument.