Logical ReasoningDifficulty: Hard

PT112 S3 Q14 Explanation

We learn to use most

A free, expert breakdown of this official LSAT Logical Reasoning question.

TopicsNecessary Assumption

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Stimulus

We learn to use most of the machines in our lives through written instructions, without knowledge of the machines’ inner workings, because most machines are specifically designed for use by nonexperts. So, in general, attaining technological expertise would prepare students for tomorrow’s more traditional education stressing verbal and quantitative skills.

What this question is testing

Necessary Assumption

Your task

Find the assumption the argument requires in order for its conclusion to hold.

Common trap

Answers that would help the argument but aren't strictly required (sufficient, not necessary).

Winning move

Negate each choice — the right one breaks the argument when negated.

Reading along? Open the full official question in LawHub — we show a fragment here and keep the reasoning in our own words.

The question
14.

The argument depends on assuming which one of

Answer choices

  1. Unknown Comparison1% picked this

    Fewer people receive a traditional education stressing verbal and quantitative skills now than did

    The author has never spoken about numbers or declining trends. We have no way to say she's committed to thinking that fewer people receive traditional education. Yes, she seems to be "sticking up" for traditional education, but that doesn't mean it's on the decline. People stick up for Christmas every year, even though just as many people (or more, due to population growth) celebrate it every year.

  2. Too Strong: almost never enhanced13% picked this

    Facility in operating machines designed for use by nonexperts is almost never enhanced by expert knowledge of

    The author thinks that in most cases (at least 51% of cases), we can learn to use a machine without knowledge of its inner workings. That isn't as strong as saying, "Knowing its inner workings almost always (at least 90% of the time) does nothing to enhance your facility in operating a machine." The author was saying that knowledge of inner workings is usually not necessary, but this is saying such knowledge is almost always value-less.

  3. Correct69% picked this

    Most jobs in tomorrow’s job market will not demand the ability to operate many machines that are designed

    Why this is right

    Whenever we see that an answer on Necessary Assumption is ruling out an idea using the word not, we slow down and negate it. Does this negation weaken the argument? Most jobs in tomorrow's job market will demand the ability to operate machines designed for use only by experts. Sure! The author was thinking, "Since most machines are geared for nonexperts, technological expertise isn't going to help you land a job." She's assuming that these jobs in the future will be using the sort of machines that are geared for nonexperts, stuff like fax machines, copiers, laptops, blenders, etc. But what if there are other machines .... gamma knife, dialysis machine, gene splicer, transistor designer, chemical centrifuge, solar panels, etc. ... that do require expertise, and most of the future's jobs will demand that? In that case, it sounds like technological expertise would help you land a job. Since the negation of the answer weakens the argument, this is correct.

    Skill tested: Necessary Assumption · how this choice captures the argument's function is the move to repeat next time.

  4. Too Strong: cannot9% picked this

    Students cannot attain technological expertise and also receive an education that does not neglect verbal

    The author hasn't committed herself to the idea that you can't do both. If someone says, "X will serve you no better than Y", they're not saying it's impossible to do both X and Y. If I say, "try all you want buddy, but Samiha is not going to date you. Sending her flowers will serve you no better than writing her a love song", I haven't told my friend "it's impossible for you to both send her flowers and write her a love song".

  5. Too Strong: never8% picked this

    When learning to use a machine, technological expertise is never more important than verbal

    The author has not said anything extreme enough to justify accusing her of thinking "tech expertise is never more important". She hedged her wording in her premise and said only that "most machines are designed for nonexperts".

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