Unplugged Practice Test: Logical Reasoning Set 1, Question 5 (Must Be True)
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- These questions ask what must be true given the statements.
- Predict what a correct answer needs to do before you read the choices.
- Every question on this test is original, written to the same logical skeletons as real questions, and Steve checked every one himself before release.
The question
A master brewer at the Harlow Ridge cidery maintains that no one can judge the quality of a fermentation accurately without many years of specialized apprenticeship behind them. Completing that apprenticeship is also the only route to certification as a fermentation inspector. She recognizes, too, that the great majority of home cooks will never have the chance to complete one.
5. If the master brewer's statements are all correct, which one of the following must also be correct?
- (A)Specialized apprenticeships of this kind ought to be made available to more home cooks.
- (B)No one who lacks certification as a fermentation inspector can judge the quality of a fermentation accurately.
- (C)The master brewer is able to judge the quality of a fermentation accurately.
- (D)The great majority of home cooks are unable to judge the quality of a fermentation accurately.
- (E)Certified fermentation inspectors are not themselves home cooks.
DWhy (D) is correct
The master brewer holds 3 things together: judging a fermentation's quality accurately takes years of specialized apprenticeship, that apprenticeship is the only route to certification as a fermentation inspector, and most home cooks will never get the chance to complete one. Since the apprenticeship is required for accurate judgment and most home cooks never reach it, most home cooks can't judge a fermentation's quality accurately. That's the ground the choices need to hold up against.
Why the other answers are wrong
AWhy (A) is wrong
(A) turns a fact about limited access into a policy call the master brewer never makes; her statements describe who can judge, not who should get more apprenticeships.
BWhy (B) is wrong
(B) overreaches by swapping in certification for apprenticeship. The requirement she states is the apprenticeship itself, so a person could finish it and judge accurately without ever seeking certification.
CWhy (C) is wrong
(C) isn't forced. The apprenticeship is necessary for accurate judgment, but nothing in her statements says she completed one herself, so her own ability stays unestablished.
EWhy (E) is wrong
(E) draws a line her statements never draw: whether a certified inspector could also count as a home cook is left wide open.
Common questions
What type of question is this?
Must Be True. These questions ask what must be true given the statements.
How do I get better at Must Be True questions?
Predict the answer before reading the choices. The free LSAT cheat sheet lists the wrong-answer patterns to watch for on every type.
