LSAT-Section-1-Logical-Reasoning – Section One : Logical Reasoning

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Showing 163–165 of 430 questions

Question 163

Tony: A new kind of videocassette has just been developed. It lasts for only half as many vie wings as the old kind does but costs a third as much. Therefore, video rental stores would find it significantly more economical to purchase and stock movies recorded on the new kind of videocassette than on the old kind.

Anna: But the videocassette itself only accounts for 5 percent of the price a video rental store pays to buy a copy of a movie on video; most of the price consists of royalties the store pays to the studio that produced the movie. So the price that video rental stores pay per copy would decrease by considerably less than 5 percent, and royalties would have to be paid on additional copies.

Anna's reply is structured to lead to which one of the following conclusions?

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The royalties paid to movie studios for movies sold on videotape are excessively large.
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Video rental stores should always stock the highest-quality videocassettes available, because durability is more important than price.
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The largest part of the fee a customer pays to rent a movie from a video rental store goes toward the royalties the store paid in purchasing that movie.
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The cost savings to video rental stores that buy movies recorded on the cheaper videocassettes rather than movies recorded on the more durable ones will be small or nonexistent.
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If the price a video rental store pays to buy a movie on videocassette does not decrease, the rental fee the store charges on the movie will not decrease.

Reference / correct answer:

The cost savings to video rental stores that buy movies recorded on the cheaper videocassettes rather than movies recorded on the more durable ones will be small or nonexistent.

Our next confrontation features Tony vs. Anna in a video debate. Tony asserts that video stores would make out economically if they bought and stocked movies recorded on the new kind of videocassette. The decreased lifespan of the new tapes, Tony reasons, is outweighed by their cheaper cost. Anna’s reply, which is the focus of Q. 23, begins with the Contrast Keyword “But,” so no doubt she takes exception to Tony’s advice for the video stores. She points out that the cost of the videocassette is only a small fraction of the overall cost of buying a videotaped movie, the bulk of the expense residing in the royalty fee. Each time a tape wears out (and these new-fangled ones wear out faster than the older ones), a store incurs another royalty fee. It’s not hard to see where Anna is going with this: The overall cost savings Tony touts will be very minimal, if they exist at all, because the area in which Tony’s savings accrue represents only a tiny fraction of the overall cost.

Question 164

Which one of the following, if true, would contribute most to a defense of Tony's position against Anna's reply?

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The price that video rental stores pay for movies recorded on videocassettes is considerably less than the retail price of those movies.
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A significant proportion of the movies on videocassette purchased by video rental stores are bought as replacements for worn-out copies of movies the stores already have in stock.
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The royalty fee included in the price that video rental stores pay for movies on the new kind of videocassette will be half that included in the price of movies on the old kind.
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Given a choice, customers are more likely to buy a movie on videocassette than to rent it if the rental fee is more than half of the purchase price.
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Many of the movies rented from video rental stores, particularly children's movies, average several viewings per rental fee.

Question 165

Physician: Heart disease generally affects men at an earlier age than it does women, who tend to experience heart disease after menopause. Both sexes have the hormones estrogen and testosterone, but when they are relatively young, men have ten times as much testosterone as women, and women abruptly lose estrogen after menopause. We can conclude, then, that testosterone tends to promote, and estrogen tends to inhibit, heart disease.

The physician's argument is questionable because it presumes which one of the following without providing sufficient justification?

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Hormones are the primary factors that account for the differences in age-related heart disease risks between women and men.
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Estrogen and testosterone are the only hormones that promote or inhibit heart disease.
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Men with high testosterone levels have a greater risk for heart disease than do postmenopausal women.
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Because hormone levels are correlated with heart disease they influence heart disease.
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Hormone levels do not vary from person to person, especially among those of the same age and gender.

Reference / correct answer:

Because hormone levels are correlated with heart disease they influence heart disease.

The question stem is just a wordy way of asking you to identify the logical flaw in the argument. This is a classic case of confusing correlation with causation. Just because X and Y appear together doesn’t mean that X causes Y. Here the physician cites the evidence of high testosterone levels in younger men, and lower estrogen levels in post-menopausal women.

The physician then couples this with the fact that men get heart disease earlier, and women get it later, and finally concludes that testosterone promotes heart disease, and estrogen tends to inhibit disease. Looking at this evidence, you can agree that hormone levels and heart disease do seem to be correlated, but does that necessarily mean that these hormones promote or inhibit disease? Might there be other causes? Couldn’t the correlation just be coincidence? Once you have identified this flaw (and it should come naturally after having read numerous causal arguments) you should be able to go quickly to correct answer choice [Because hormone levels are correlated…].

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