Statement 1: Elizabeth has four children. Statement 2: Two of the children have blue eyes and two of the children have brown eyes. Statement 3: Half of the children are girls. If the first three statements are facts, which of the following statements must also be a fact? a. At least one girl has blue eyes. b. Two of the children are boys. c. The boys have brown eyes.

a only
a and b
b only
b and c

Correct Answer: b only

Explanation:

Since half of the four children are girls, two must be boys. It is not clear which children have blue or brown eyes. So only statement (b) follows.

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