PrepTest 109, Section 1, Question 9

Must Be TrueDifficulty3 of 5
The questionFull text in your LawHub copy of PrepTest 109

The same task triggers different levels of awareness(77 more words not shown)

Which one of the following(8 more words not shown)

Reading the argument

I'd expect a difficult puzzle to pull someone's attention away from the room. Think of getting absorbed in a chess game or a movie and barely noticing what's happening around you. So the claim that mathematical puzzles increase most people's awareness of their surroundings surprises me. Still, that's the information we're given.

The passage then describes the sort of response I first imagined. Some people picture the numbers in their minds and try to hold that image still. Their awareness of the outside environment decreases. Other people may become more aware during breaks between stages of solving the problem. The same activity can therefore produce different changes in different people.

What we’re looking for

We're asked what is most strongly supported. I don't have a more specific prediction to add; I'd test the choices against those descriptions. Keep track of the groups and the difference between becoming more or less aware. A decrease in awareness isn't the same as losing all awareness, and an increase doesn't mean someone was completely unaware before.

Working the answers

  • A
    Correct

    The visual problem solvers are the example we need. They experience a decrease in environmental awareness while solving the puzzle, so there are some people for whom mathematical puzzles do not produce an increase. A states a modest consequence of the information explicitly given.

  • B

    This treats being aware of one's surroundings as what distinguishes the visual solvers. The passage doesn't divide people into an aware group and an unaware group. It describes changes in degree, and the visual solvers are the ones whose awareness decreases. B doesn't accurately capture that contrast.

  • C

    We don't have a comparison between mathematical and nonmathematical problems. We have a comparison among people's responses to mathematical puzzles. The same people might become even more aware during another kind of problem, or less aware; the passage doesn't say.

  • D

    The rest explanation is offered for other people, not as a rule about the visual solvers. D transfers it to that group and then adds “only,” excluding awareness at all other times. Neither move is supported. Becoming less aware while holding an image doesn't establish complete unawareness until a rest period.

  • E

    A description of what happens for some people isn't a requirement for doing mathematics. The passage doesn't say everyone must take frequent rests, or that problem solving is impossible without those increases in awareness. E turns one possible response into a condition all solvers must meet.

More Must Be True questions

Learn the LSAT our way

Our platform drills Must Be True questions at your level and adjusts as you improve.

See plans and pricing

HFL LSAT Advisor

Online

Hi! I'm HFL's LSAT advisor.

Tell me your score and goal and I'll point you to the right plan — or ask me anything.