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

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Showing 190–192 of 430 questions

Question 190

Telephone companies are promoting "voice mail" as an alternative to the answering machine. By recording messages from callers when a subscriber does not have access to his or her telephone, voice mail provides a service similar to that of an answering machine. The companies promoting this service argue that it will soon make answering machines obsolete, since it is much more convenient, more flexible, and less expensive than an answering machine.

Which one of the following, if true, most calls into question the argument made by the companies promoting voice mail?

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Unlike calls made to owners of answering machines, all telephone calls made to voice-mail subscribers are completed, even if the line called is in use at the time of the call.
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The surge in sales of answering machines occurred shortly after they were first introduced to the electronics market.
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Once a telephone customer decides to subscribe to voice mail, that customer can cancel the service at any time,
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Answering machines enable the customer to hear who is calling before the customer decides whether to answer the telephone, a service voice mail does not provide.
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The number of messages a telephone answering machine can record is limited by the length of the magnetic tape on which calls are recorded.

Reference / correct answer:

Answering machines enable the customer to hear who is calling before the customer decides whether to answer the telephone, a service voice mail does not provide.

Certainly the companies promoting voice mail have a vested interest in making it sound as good as possible. Their pitch includes greater convenience, more flexibility, and lower cost than the garden-variety answering machine. One need not jump through hoops to weaken an argument like this – pointing out a factor that the voice mail folks overlook (conveniently, no doubt) that favors the answering machine over voice mail would be enough. The factor in option [Answering machines enable the customer to…] serves perfectly well. A huge benefit of answering machines (as we suspect most of us have discovered by now) is the ability they afford us to “screen” our calls. They weren’t invented for that purpose, but people certainly figured out pretty quickly how to use them that way. Option [Answering machines enable the customer to…] therefore cites a function of answering machines that voice mail can’t match, and to the extent that that function is desirable (which isn’t so hard to imagine), we’d be less likely to believe the prediction that voice mail will render the answering machine obsolete.

Question 191

The judgment that an artist is great always rests on assessments of the work the artist has produced. A series of great works is the only indicator of greatness. Therefore, to say that an artist is great is just to summarize the quality of his or her known works, and the artist's greatness can provide no basis for predicting the quality of the artist's unknown or future works.

Which one of the following contains questionable reasoning most similar to that in the argument above?

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The only way of knowing whether someone has a cold is to observe symptoms. Thus, when a person is said to have a cold, this means only that he or she has displayed the symptoms of a cold, and no prediction about the patient's future symptoms is justified.
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Although colds are very common, there are some people who never or only very rarely catch colds. Clearly these people must be in some way physiologically different from people who catch colds frequently.
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Someone who has a cold is infected by a cold virus. No one can be infected by the same cold virus twice, but there are indefinitely many different cold viruses. Therefore, it is not possible to predict from a person's history of infection how susceptible he or she will be in the future.
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The viruses that cause colds are not all the same, and they differ in their effects. Therefore, although it may be certain that a person has a cold, it is impossible to predict how the cold will progress.
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Unless a person displays cold symptoms, it cannot properly be said that the person has a cold, But each of the symptoms of a cold is also the symptom of some other disease. Therefore, one can never be certain that a person has a cold.

Question 192

Four boys – Fred, Juan, Marc, and Paul – and three girls – Nita, Rachel, and Trisha – will be assigned to a row of five adjacent lockers, numbered consecutively 1 through 5, arranged along a straight wall. The following conditions govern the assignment of lockers to the seven children:

Each locker must be assigned to either one or two children, and each child must be assigned to exactly one locker. Each shared locker must be assigned to one girl and one boy.

Juan must share a locker, but Rachel cannot share a locker.

Nita's locker cannot be adjacent to Trisha's locker. Fred must be assigned to locker 3.

Which one of the following is a complete and accurate list of the children who must be among those assigned to shared lockers?

Select an option, then click Submit answer.

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Fred, Juan
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Juan, Paul
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Juan, Marc, Paul
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Juan, Marc, Trisha
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Juan, Nita, Trisha

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