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Fact 1: Robert has four vehicles. Fact 2: Two of the vehicles are red. Fact 3: One of the vehicles is a minivan. If the first three statements are facts, which of the following statements must also be a fact? I: Robert has a red minivan. II: Robert has three cars. III: Robert's favorite color is red.

I only
II only
II and III only
None of the statements is a known fact.

Correct Answer: None of the statements is a known fact.

Explanation:

There is not enough information to support any of the statements. Robert is known to have a minvan, but it is not known which of his vehicles is red. Robert may have a pickup or sport utility vehicle, so the second statement cannot be supported. There is no way to know if Robert's favorite color is red (statement III).

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