Question

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

Answer 1

ll: statement, two of the children are boys is a fact as half means 2 are girls then half means remaining 2 are boys. But the others are not clear as we cannot predict that a girl will have blue eyes or two boys will have brown eyes.

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Answer 2

The second statement is a fact.

Since 1 1/2 of the four children are girls,so, 2 must be boys. But it is not clear which children have blue and which have brown eyes.