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23 Jan 2020, 10:35
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71% (01:56) correct
29%
(02:02)
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Although all birds have feathers and all birds have wings, some birds do not fly. For example, penguins and ostriches use their wings to move in a different way from other birds. Penguins use their wings only to swim under water at high speeds. Ostriches use their wings only to run with the wind by lifting them as if they were sails.
Which one of the following is most parallel in its reasoning to the argument above?
(A) Ancient philosophers tried to explain not how the world functions but why it functions. In contrast, most contemporary biologists seek comprehensive theories of how organisms function, but many refuse to speculate about purpose.
(B) Some chairs are used only as decorations, and other chairs are used only to tame lions. Therefore, not all chairs are used for sitting in despite the fact that all chairs have a seat and some support such as legs.
(C) Some musicians in a symphony orchestra play the violin, and others play the viola, but these are both in the same category of musical instruments, namely string instruments.
(D) All cars have similar drive mechanisms, but some cars derive their power from solar energy, whereas others burn gasoline. Thus, solar-powered cars are less efficient than gasoline-powered ones.
(E) Sailing ships move in a different way from steamships. Both sailing ships and steamships navigate over water, but only sailing ships use sails to move over the surface.
LSAT Prep Test 8
Which one of the following is most parallel in its reasoning to the argument above?
(A) Ancient philosophers tried to explain not how the world functions but why it functions. In contrast, most contemporary biologists seek comprehensive theories of how organisms function, but many refuse to speculate about purpose.
(B) Some chairs are used only as decorations, and other chairs are used only to tame lions. Therefore, not all chairs are used for sitting in despite the fact that all chairs have a seat and some support such as legs.
(C) Some musicians in a symphony orchestra play the violin, and others play the viola, but these are both in the same category of musical instruments, namely string instruments.
(D) All cars have similar drive mechanisms, but some cars derive their power from solar energy, whereas others burn gasoline. Thus, solar-powered cars are less efficient than gasoline-powered ones.
(E) Sailing ships move in a different way from steamships. Both sailing ships and steamships navigate over water, but only sailing ships use sails to move over the surface.
LSAT Prep Test 8
26 Jan 2020, 02:52
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The quickest and easiest way to work this question may be first to find the conclusion, then search for the argument with a parallel conclusion. In this and many similar questions, the conclusion is the simplest piece, so it’s the easiest to match up. If this strategy didn’t occur to you, you could still work through the question, but it would take longer. Try to apply this strategy whenever you can on Parallel Reasoning questions. So, looking at the stimulus, we see that the conclusion is “some birds do not fly.” Pretty clear. All the rest of the information is just backing this up by explaining that, though all birds have feathers and wings, some birds use them for different purposes. Let’s find the parallel.
(A) compares ancient philosophers with modern biologists, discussing their goals for study. Although the stimulus does mention non-flying birds, there’s no comparison set up between them and flying birds. This choice, which hinges on a comparison of two distinctly different things and never really comes to a conclusion at all, can’t be parallel.
(B) Searching for the conclusion in (B), we find the word “therefore”—a great structural signal telling us that a conclusion is coming. Then we find “...not all chairs are used for sitting in...” Of course this could be rephrased as “Some chairs are not used for sitting in” and that’s parallel to “some birds do not fly.” In addition, the argument has the same kinds of evidence, giving examples of chairs that aren’t used for sitting. Furthermore, “seat” and “support” match up perfectly with “feathers” and “wings” as two characteristics that are ubiquitous in the respective categories (chairs and birds). (B) is parallel and correct. Now let’s make sure the other choices are as bad as they need to be.
(C) is close, but no cigar. It tells us that both violins and violas are instruments in a symphony orchestra, but the idea that there are some somethings that don’t do something particular isn’t there. Not parallel.
(D) sets up a comparison of the value of solar-powered and gasoline-powered cars, which can’t be parallel because the stimulus argument doesn’t include this kind of judgment of value.
(E) compares sailing ships and steamships on the basis of how they move—again, we’re missing the idea that some of a particular group don’t do something that others do.
Answer: B
The quickest and easiest way to work this question may be first to find the conclusion, then search for the argument with a parallel conclusion. In this and many similar questions, the conclusion is the simplest piece, so it’s the easiest to match up. If this strategy didn’t occur to you, you could still work through the question, but it would take longer. Try to apply this strategy whenever you can on Parallel Reasoning questions. So, looking at the stimulus, we see that the conclusion is “some birds do not fly.” Pretty clear. All the rest of the information is just backing this up by explaining that, though all birds have feathers and wings, some birds use them for different purposes. Let’s find the parallel.
(A) compares ancient philosophers with modern biologists, discussing their goals for study. Although the stimulus does mention non-flying birds, there’s no comparison set up between them and flying birds. This choice, which hinges on a comparison of two distinctly different things and never really comes to a conclusion at all, can’t be parallel.
(B) Searching for the conclusion in (B), we find the word “therefore”—a great structural signal telling us that a conclusion is coming. Then we find “...not all chairs are used for sitting in...” Of course this could be rephrased as “Some chairs are not used for sitting in” and that’s parallel to “some birds do not fly.” In addition, the argument has the same kinds of evidence, giving examples of chairs that aren’t used for sitting. Furthermore, “seat” and “support” match up perfectly with “feathers” and “wings” as two characteristics that are ubiquitous in the respective categories (chairs and birds). (B) is parallel and correct. Now let’s make sure the other choices are as bad as they need to be.
(C) is close, but no cigar. It tells us that both violins and violas are instruments in a symphony orchestra, but the idea that there are some somethings that don’t do something particular isn’t there. Not parallel.
(D) sets up a comparison of the value of solar-powered and gasoline-powered cars, which can’t be parallel because the stimulus argument doesn’t include this kind of judgment of value.
(E) compares sailing ships and steamships on the basis of how they move—again, we’re missing the idea that some of a particular group don’t do something that others do.
Answer: B
Hope it helps
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