Logic Breakdown

Passage Summary: Everyone who is good at a specific game is also good with their hands; since Mary is good with her hands, the author assumes she must be good at that game.

Conclusion: Mary would likely be a successful player of the game Drackedary.

Reasoning: All good Drackedary players are skilled with their hands, and Mary is a skilled watchmaker, which requires manual dexterity.

Analysis: This argument is a textbook example of a 'mistaken reversal.' The premise tells us that being skilled with one's hands is a necessary requirement for being a good Drackedary player, but the author treats it as a sufficient condition that guarantees Mary will be good at the game. To find the parallel, look for an answer choice that identifies a requirement for a group and then incorrectly assumes that anyone meeting that requirement must be a member of that group.

Passage Stimulus

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15.

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

Correct Answer
C
It matches the flawed form. All race car drivers have good reflexes (R → G). Chris, as a champion table tennis player, is assumed to have good reflexes (G). The argument then concludes Chris would be a good race car driver (R). This is the same necessary/sufficient mix-up as in the original.
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