Free LSAT Practice Question

Question 1 of 1
ID: LSAT-LR-153
Section: Logical Reasoning
Topic: Flaw in the Reasoning
Difficulty level: Hard

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Mason: The parapet was taken down in 1978, reset in cement, and its worst stones renewed. The churchyard wall was repointed in lime that season and otherwise left alone. Cement holds water in a wall, and what cannot leave by the joint leaves by the stone. The parapet has since lost the face of nearly every stone, the wall none. So the cement took the faces off.

The mason's argument is most vulnerable to criticism on the grounds that it

Aputs forward, with no support of any kind, the claim that water shut out of a joint will leave a wall by way of its stone, which is the only thing tying a cement joint to a damaged face

Bmeasures the parapet against a wall in a churchyard, when a comparison able to settle the question would need a second parapet, on the same tower, pointed in lime instead

Ctreats the mortar as the only thing about the parapet that changed in 1978, when by the argument's own account its stone was changed in that same operation

Dconcludes that cement takes the face off a stone from premises about where water standing in a wall finally goes

Egeneralises from the two walls it describes to stonework at large, when two walls repointed in a single season are too few to stand for a county

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