जॉइन Examsbookउत्तर : 3. "b only"
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.5
प्र: 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.
- 1a onlyfalse
- 2a and bfalse
- 3b onlytrue
- 4b and cfalse
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उत्तर : 3. "b only"
व्याख्या :
Answer: C) 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.