Free LSAT Practice Question

Question 1 of 1
ID: LSAT-LR-195
Section: Logical Reasoning
Topic: Parallel flaw in the argument
Difficulty level: Hard

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Quarry manager: Every slate we split by hand comes out thicker than the ones the machine splits. On the roofs we have relaid, hand-split slate was still sound where machine-split slate of the same age had to be taken off. Thickness, then, is at least part of what makes a hand-split roof last.

The flawed reasoning in which one of the following is most similar to the flawed reasoning above?

AEvery basket the workshop weaves from two-year willow comes out with thicker rods than the ones it weaves from one-year willow, and every basket it sends up to the fruit farm at picking time is woven from two-year willow. There is, then, no basket it sends to the farm whose rods are as thin as a one-year basket's.

BEvery slate split by hand at the firm over the hill comes out thicker than the ones split by its machine, and on the roofs it has relaid the slate split by hand has outlasted the rest. A thicker slate, then, is what makes such a roof last.

CEvery pair the workshop welts by hand has a thicker sole than the pairs it glues by machine, and welted boots are seldom brought back. The soles, then, are thick at least in part because the boots last.

DEvery hull the yard planks in larch comes out heavier than the ones it planks in plywood. Of the boats laid up last winter, the larch hulls were tight where plywood hulls built alongside them were letting water. Weight, then, is at least part of what makes a larch hull last.

EOn the roofs a neighbouring firm has relaid, the slate it split by hand has needed no attention in twenty years, while the slate it split by machine has been patched twice over. Splitting by hand, then, is at least part of what makes such a roof last.

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