Mr.and Mrs.Smith have six daughters and each daughter has one brother.快.Mr.and Mrs.Smith have six daughters and each daughter has one brother.How many people are there in the family?

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Mr.and Mrs.Smith have six daughters and each daughter has one brother.快.Mr.and Mrs.Smith have six daughters and each daughter has one brother.How many people are there in the family?

Mr.and Mrs.Smith have six daughters and each daughter has one brother.快.Mr.and Mrs.Smith have six daughters and each daughter has one brother.How many people are there in the family?
Mr.and Mrs.Smith have six daughters and each daughter has one brother.快.
Mr.and Mrs.Smith have six daughters and each daughter has one brother.How many people are there in the family?

Mr.and Mrs.Smith have six daughters and each daughter has one brother.快.Mr.and Mrs.Smith have six daughters and each daughter has one brother.How many people are there in the family?
There are 9 people in the family.

为什么不是13?又不是Only one。。。求解答

9