Free LSAT Practice Question

Question 1 of 1
ID: LSAT-LR-127
Section: Logical Reasoning
Topic: Method of Reasoning
Difficulty level: Hard

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Laboratory manager: The auditor found that on nine mornings last year the balances went unchecked against the reference mass, and concludes that the year's weighings are unreliable. But the morning check does not make a balance accurate; it records whether the balance has drifted since the last check. On each of those nine days the next morning's check found no drift.

Which one of the following most accurately describes the laboratory manager's method of reasoning?

AIt leaves the auditor's inference standing and objects instead to a matter she never raised, whether the reference mass may itself be uncalibrated.

BIt charges the auditor with treating the coincidence of missed checks and doubtful results as cause and effect, when something else might explain both.

CIt distinguishes what the morning check produces from what it merely records, then uses the laboratory's own later checks to establish that the nine days' weighings were accurate.

DIt grants that the nine days are unreliable and faults whoever set the schedule, not the staff who weighed.

EIt separates what the morning check produces from what it merely records, and observes that on the laboratory's own evidence the missed checks need not tell against the year's weighings.

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