medium · LSAT Logical Reasoning
A nutritionist states: 'To lose weight, one must either reduce caloric intake or increase physical activity. Since John has increased his physical activity, he will certainly lose weight.'
The reasoning is flawed because it
- Treats a step that is merely required for weight loss as though carrying it out were enough to bring weight loss about.
- Assumes without warrant that intake and activity are the only things that affect weight loss.
- Overlooks that some people raise their activity level yet still fail to lose weight.
- Mistakes a correlation between activity and weight loss for a genuine causal relationship.
- Presumes that increasing activity is impossible without also reducing caloric intake.
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More LSAT Logical Reasoning practice
- Which one of the following is an assumption required by the argument?
- Which one of the following can be properly inferred from the statements above?
- The question type just described is best identified as which one of the following?
- The reasoning in the argument is flawed in that the argument
- The reasoning in the argument is flawed because the argument
- Which one of the following most accurately describes the relationship the statement establ
- Which one of the following can be validly inferred from the two conditionals above?
- Which one of the following must be true given the statement above?