Free LSAT Practice Question

Question 1 of 1
ID: LSAT-LR-182
Section: Logical Reasoning
Topic: Weaken the Argument
Difficulty level: Medium

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Racket maker: We count a season as sixty days on court, and we take that from the owner's diary. Of the graphite frames brought back to us after four such seasons, nine in ten still measured within a millimetre of their set shape; of the ash frames, one in ten did. Graphite, then, holds a playing shape that ash cannot.

Which one of the following, if true, most seriously weakens the racket maker's argument?

AA day on court goes into the owner's diary whether the frame was played on it or spent it in its bag.

BNo graphite frames the bench has set hold their shape to within a millimetre into a fifth season, the resin between their fibres having gone by then.

CMost ash frames that failed to measure within a millimetre were out by half a millimetre more, and the owner's diary put each at four seasons.

DGraphite frames are set stiffer than ash ones, and a shape set that stiff plays poorly at the net.

EGraphite loses its power when the resin parts from the fibres beneath it, and a frame that has gone soft in that way measures within a millimetre of its set shape.

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