Reasoning - Logical Problems - Discussion

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Q.

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.                         
A. I only B. II only
C. II and III only D. None of the statements is a known fact.

Answer: Option B
Explaination:

 


Since one-half of the four children are girls, two must be boys. It is not clear which children have blue or brown eyes.




Discussion

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