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Choose your answer based solely on the information given in the first three facts. Fact 1: All dogs like to run. Fact 2: Some dogs like to swim. Fact 3: Some dogs look like their masters. If the…

Question and options

Choose your answer based solely on the information given in the first three facts.
Fact 1: All dogs like to run.
Fact 2: Some dogs like to swim.
Fact 3: Some dogs look like their masters.
If the first three statements are facts, which of the following statements must also be a fact?
I. All dogs who like to swim look like their masters.
II. Dogs who like to swim also like to run.
III. Dogs who like to run do not look like their masters.
  1. I only
  2. II only
  3. II and III only
  4. III only

Answer and explanation

Correct answer: B - II only
All dogs like to run, so any dog that swims also runs: II must be true. I does not follow ('some' dogs look like their masters, not all swimmers), and III contradicts Fact 3 since all dogs run and some look like their masters.

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