medium · LSAT Logical Reasoning

If a law student studies for more than ten hours a day, they will inevitably experience burnout. Sarah did not study for more than ten hours a day. Therefore, Sarah will not experience burnout.

Which one of the following exhibits the same flawed pattern of reasoning as the argument above?

  1. If a plant is watered daily, it will stay healthy. This plant was not watered daily. So it will not stay healthy.
  2. If a car's battery is dead, the car will not start. The car started. So the battery is not dead.
  3. All successful athletes exercise regularly. Mark exercises regularly. So Mark will be a successful athlete.
  4. Anyone who wins the lottery becomes wealthy. James is wealthy. So James must have won the lottery.
  5. If a student misses every class, they will fail. This student attended every class. So this student is guaranteed to pass.

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