Logical ReasoningDifficulty: Medium

PT118 S4 Q4 Explanation

Computer manufacturers and retailers tell

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

TopicsWeaken

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Stimulus

Computer manufacturers and retailers tell us that the complexity involved in connecting the various components of personal computers is not a widespread obstacle to their use, but this is wrong. Customers who install accessories to their personal computers have to take full responsibility for the setting of jumpers and switches to satisfy to stop working; adding a modem, for instance, may disable a printer.

What this question is testing

Weaken

Your task

Find the choice that makes the argument's conclusion less likely to be true.

Common trap

Answers that look negative but attack a claim the argument never relied on.

Winning move

Find the assumption the argument depends on, then pick the choice that undermines it.

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

The question
4.

Which one of the following, if true, most seriously weakens

Answer choices

  1. No Impact17% picked this

    Personal computer instruction manuals usually explain the purposes of the jumpers

    This claims that manuals clearly explain the purpose of jumpers and switches, but that doesn't address the complexity of connecting the components.

  2. No Impact1% picked this

    Software for accessories can often be obtained

    This points out that accessory software is free, which doesn't address the primary concern about compatibility or functional issues, thus not relevant to the stated obstacle.

  3. No Impact4% picked this

    Installing an accessory will become extremely easy in the

    This mentions future ease of installing accessories, but the argument is about the current state of complexity, so it doesn’t address present obstacles.

  4. Correct72% picked this

    A personal computer is usually sold as part of a package that includes accessories

    Why this is right

    This explains that PCs are often sold as part of a package including accessories with free installation services. This greatly reduces any complexity issue for consumers, suggesting that potential obstacles do not prevent them from using computers.

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

  5. Strengthens6% picked this

    Computer manufacturers rarely take into account ease of installation when they are designing

    This notes that manufacturers rarely consider ease of installation, which supports the idea that the process is potentially complicated and can be an obstacle.

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